You drop your iPhone from rest at a height of 2 m above a leveled cemented floor so the iPhone undergoes a freefall until it hits the floor and breaks into 3 pieces, each of mass m. One piece moves with a velocity of 2 m/s at 30° from the + x axis and the second piece moves with a velocity of 4 m/s at 60° from the - x axis as shown in the figure below: m 60° 30° (a) Find the velocity of the third piece. (b) What direction does the third piece move in? m 2

You drop your iPhone from rest at a height of 2 m above a leveled cemented floor so the iPhone undergoes a freefall until it hits the floor and breaks into 3 pieces, each of mass m. One piece moves with a velocity of 2 m/s at 30° from the + x axis and the second piece moves with a velocity of 4 m/s at 60° from the - x axis as shown in the figure below: m 60° 30° (a) Find the velocity of the third piece. (b) What direction does the third piece move in? m 2

Name: You drop your iPhone from rest at a height of 2 m above a leveled cem
Uploaded: 2024-03-20T06:57:37.000Z
Channel: Bartleby
Description: You drop your iPhone from rest at a height of 2 m above a leveled cemented floor so the iPhoneundergoes a freefall until it hits the floor and breaks into 3 pieces, each of mass m. One piece moveswith a velocity of 2 m/s at 30° from the + x axis and

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter8: Momentum And Collisions

Section: Chapter Questions

Problem 31P

See similar textbooks

Similar questions

A space probe, initially at rest, undergoes an internal mechanical malfunction and breaks into three pieces. One piece of mass ml = 48.0 kg travels in the positive x-direction at 12.0 m/s, and a second piece of mass m2 = 62.0 kg travels in the xy-plane at an angle of 105 at 15.0 m/s. The third piece has mass m3 = 112 kg. (a) Sketch a diagram of the situation, labeling the different masses and their velocities, (b) Write the general expression for conservation of momentum in the x- and y-directions in terms of m1, m2, m3, v1, v2 and v3 and the sines and cosines of the angles, taking to be the unknown angle, (c) Calculate the final x-components of the momenta of m1 and m2. (d) Calculate the final y-components of the momenta of m1 and m2. (e) Substitute the known momentum components into the general equations of momentum for the x- and y-directions, along with the known mass m3. (f) Solve the two momentum equations for v3 cos and v3 sin , respectively, and use the identity cos2 + sin2 = 1 to obtain v3. (g) Divide the equation for v3 sin by that for v3 cos to obtain tan , then obtain the angle by taking the inverse tangent of both sides, (h) In general, would three such pieces necessarily have to move in the same plane? Why?
A hockey puck of mass 150 g is sliding due east on a frictionless table with a speed of 10 m/s. Suddenly, a constant force of magnitude 5 N and direction due north is applied to the puck for 1.5 s. Find the north and east components of the momentum at the end of the 1.3-s interval.
How much fuel would be needed for a 1000-kg rocket (this is its mass with no fuel) to take off from Earth and reach 1000 m/s in 30 s? The exhaust speed is 1000 m/s.
A ball of mass 0.5 kilogram, initially at rest, is kicked directly toward a fence from a point 32 meters away, as shown above. The velocity of the ball as it leaves the kicker's foot is 20 meters per second at an angle of 37o above the horizontal. The top of the fence is 2.5 meters high. The kicker's foot is in contact with the ball for 0.05 second. The ball hits nothing while in flight and air resistance is negligible. (a) Determine the magnitude of the average net force exerted on the ball during the kick. (b) Determine the time it takes for the ball to reach the plane of the fence. (c) Will the ball hit the fence? If so, how far below the top of the fence will it hit? If not, how far above the top of the fence will it pass? (d) On the axes below, sketch the horizontal and vertical components of the velocity of the ball as functions of time until the ball reaches the plane of the fence.
The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at vi2=16.9m/s when the eagle swoops down, grabs the pigeon, and flies off. At the instant right before the attack, the eagle is flying toward the pigeon at an angle ?=48.7° below the horizontal and a speed of vi1 =37.7m/s. What is the speed of the eagle immediately after it catches its prey? What is the magnitude of the angle, measured from horizontal, at which the eagle is flying immediately after the strike?
Learning The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at V2 = 17.3 m/s when the eagle swoops down, grabs the pigeon, and flies off. At the instant right before the attack, the eagle is flying toward the pigeon at an angle 0 = 46.3° below the horizontal and a speed of Vil = 40.5 m/s. What is the speed of of the eagle immediately after it catches its prey? What is the magnitude of the angle, measured from horizontal, at which the eagle is flying immediately after the strike? V1.2 Uf = m/s $ =
A car with mass 996 kg moving at 28 m/s hits a giant bag of marshmallows. The bag slows the car down, but it is unable to completely stop it because it ruptures at Dt = 1.8 s after the car hits, scattering marshmallows all over the countryside. Suppose the bag exerts a force on the car that depends on time (t) given by F = -5685 N when t is in seconds from the moment the car hits the bag until the moment the bag ruptures. What is the speed of the car after the bag ruptures?
The mass of a particular eagle is twice that of a hunted pigeon. Suppose the pigeon is flying north at ??,2=16.1 m/s when the eagle swoops down, grabs the pigeon, and flies off. At the instant right before the attack, the eagle is flying toward the pigeon at an angle ?=39.9°below the horizontal and a speed of ??,1=40.5 m/s. What is the speed of the eagle immediately after it catches its prey? speed: m/s What is the magnitude of the angle, measured from horizontal, at which the eagle is flying immediately after the strike? magnitude of angle: °
You are standing on a large sheet of frictionless ice and holding a large rock. To get off the ice you throw the rock, so it has a velocity Of 12 m/s at an angle of 35° above the horizontal. If your mass is 70 kg and the rock's mass is 15 kg, find your speed after you threw the rock.
A 2.4 kg ball strikes a wall with a velocity of7.1 m/s to the left. The ball bounces off witha velocity of 5.9 m/s to the right.If the ball is in contact with the wall for0.23 s, what is the constant force exerted onthe ball by the wall?Answer in units of N.
you have to use one of these equations p = mv Ft = Δp Δp=m(vf-vi) m1v1i + m2v2i = m1v1f + m2v2f m1v1i + m2v2i = m(1+2)vf Candona strikes a 0.055-kg golf ball with a force of 260 N. If the ball moves from rest with a velocity of 65 m/s, calculate the time the ball is in contact with the club.
V and V2 on a frictionless surface. They collide As shown in the figure below, two objects are moving towar ds each cther with velocities given by the vectors V3. If the masses m1 - 1.4 m2 what is the magnitude of V3 in m/s? perfectly inelastically and then move together as indicated ty the vector Provide your answer with 2 decimal places. e1 = 38.1 degree 62 = 11.6 degree = 9.4 m/s m1 m2 V 02 Va 3