Constants A truck is travelling with a constant velocity of 14m/s directly towards a car, which is initially at rest. When the vehicles are exactly 60.0m apart, the car begins to accelerate towards the truck at a rate of 1.2m/s? Veruck = 14 m/s acar = 1.2 m/s2 60.0 m Part A How long after the car begins to accelerate will the vehicles collide? ν ΑΣφ. t =
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- hits the ball and gives it a velocity of 51 m/s to the north. the ball during the 1.0 x 10-³s when it was in contact with the bat? Ans: 9.4 x 104 m/s² north 30rb Question 6. Suppose a car is traveling at + 22.5 m/s, and the driver sees a traffic light turn red. After 0.401 s has elapsed (the reaction time), the driver applies the brakes, and the car decelerates at 4.00 m/s². What is the stopping distance of the car, as measured from the point where the driver first notices the red light? Ans: 72.3 m 81 to mort 35 bu do add asid Hed T the instant3. The blue F1 Ford truck is travelling at 5 mph as it strikes the black SUV which then strikes the red vW Bug. Assuming all vehicles are manual transmission and in neutral (so we can make a valid assumption of ignoring friction), determine post-impact velocity of each vehicle. COR is 0.7. 3500 Ib 4100 Ib 2200 IbA body is projected vertically upwards with an initial velocity of U. Another body is projected with the same initial velocity 2 seconds after the first. Find the time when the two bodies meet (T) if g is the acceleration due to gravity. a. T = U/(U + g) b. T = (U + g)/g c. T = U^2/2g d. T = 2U/g
- Two ants pass each other one is moving along the negative x axis and one is moving at 45 degrees to the x axis. Ant 1 goes 0.032 and ant 2 goes 0.070 m/s. Ant going .070 m/s begins to accelerate as soon as the two pass each other. The acceleration is .001 m/s2. How far apart will the two ants be after 2 seconds?wo cars are heading towards one another. Car A is moving with an acceleration of aA = 11 m/s2. Car B is moving with an acceleration of aB = -11 m/s2. The cars are initially at rest and separated by a distance d = 2300 m on the x-axis. Now assume that both cars start with an initial velocity. Car A's initial velocity is v0A = 47 m/s and Car B's initial velocity is vB = -41 m/s. At what time, t2 in seconds, do they meet?1. Two dogs stand facing each other a distance of 105 meters apart. They begin to run towards each other. Dog A runs at a constant velocity of 2.5 m/s; Dog B is going the opposite direction at a constant -1.8 m/s. A L x=0 ... a) How long before the dogs collide? b) At what position do they meet (x = ?)? B q x=105m
- sics 101 SICS 0780938042 Aljall saal R1) An object has a position given by r = [2+3t)i+ [3- 2t21j. What is the peed of the object at time t = 1s ? A) 4 m/s B) 10 m/s C) 5 m/s D) 8 m/s R2) A projectile is fired from ground with an initial velocity v = 30i + Oj m/s and returns to the ground. Find the horizontal range of the rojectile. A) 60 m B) 30 m C) 120 m D) 40 m 23) At t = 0, a particle leaves the origin with a velocity of 10 m/s in the ositive y direction and moves in the xy plane with a constant acceleration f (2i - 4j) m/s2. At the instant the x coordinate of the particle is 25 m, Vhat is the speed of the particle ? C) 10 m/s D) 16 m/s ) 14 m/s B) 12 m/s 24) A boy on the edge of a building 20m high throws a stone horizontally rith a speed of 25m/s. At what horizontal distance from the building it trikes the ground ? C) 60 m D) 50 m -) 25 m B) 35 m 5) A car moves with constant speed around the circle as shown. When it at point A its coordinates are x = 0, y = 3m and its velocity…G english to tagalog - G X f Facebook O Messenger 7922135&attachment_id3D507805670440786&message_id%3mid.%24cAAAACKsUxvaAwDRzu16ju8oe_XA 2 of Problem: A pen is dropped vertically 6 ft above the ground, 1 second later, someone grab the pen before the pen lands on the ground. What is the final velocity of the person's hand? Given: Vib= 0 ft/s db= vihth + 1/2gth2 Vih= ? 6ft= Vis(0.39s) +32.2 ft/s*)(0.39s) Tb= 1s + th Vis(0.39s)=6ft 32.2 ft/s*)(0.39s) Vis=6ft132.2 ft/s')(0.39s)? db= ds= 6ft Formula: (6t)32.2 f/s*(0.39s)² Vis= 0.39sThe Starship Enterprise returns from warp drive to ordinary space with a forward speed of 57 km/s. lo the crow's great surprisc, a Klingon ship is 150 km directly ahead, traveling in the same direction at a mere 21 km/s. Without evasive action, the Enterprise will overtake and collide with the Klingons in just about 4 5s The Enterprise's computers react instantly to brake the ship. What magnitude acceleration does the Enterprise need to just barely avoid a collision with the Klingon ship? Assume the acceleration is constant Hint: Draw a position versus time graph showing the motions of both the Enterprise and the Klingon ship. Let æn - 0km be the location of the Interprise as it returns from warp drive I low do you show graphically the situation in which the collision is "barely avoided"? Once you decide what it looks like graphically, express that situation mathematically. Express your answer to two significant figures and include the appropriate units. a = μA Value m s² Review |…