2. A 60-g bullet is fired horizontally with a velocity v, = 60om/s into the 3-kg block of soft wood initiallyat rest on the horizontal surface. The bullet emerges from the block with the velocity v: = 400 m/s, andthe block is observed to slide a distance of 2.70 m before coming to rest. Determine the coefficient ofkinetic friction between the block and the supporting surface.3 kg400 m/s600 m/s60 g2.70 m

To find the coefficient of kinetic friction-

st on the horizontal surface. The bullet emerges from the block with the velocity v2 = 400 r plock is observed to slide a distance of 2.70 m before coming to rest. Determine the coeffi Eic friction between the block and the supporting surface. 3 kg 400 m/s 600 m/s 60 2.70 m

st on the horizontal surface. The bullet emerges from the block with the velocity v2 = 400 r plock is observed to slide a distance of 2.70 m before coming to rest. Determine the coeffi Eic friction between the block and the supporting surface. 3 kg 400 m/s 600 m/s 60 2.70 m

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

The 200-g projectile is fired with a velocity of 900 m/s towards the center of the 15-kg wooden block, which rests on a rough surface. If the projectile penetrates and emerges from the block with a velocity of 300 m/s, determine the velocity of the block just after the projectile emerges. How long does the block slide on the rough surface, after the projectile emerges, before it comes to rest again? The coefficient of kinetic friction between the surface and the block is μ = 0.2. 900 m/s 300 m/s Before After Prob. C5-5
The 10-kg block is held at rest on a smooth inclined plane by the stop block shown by "A". If a 10-g bullet is traveling at 300 m/s when it becomes embedded in the 10-kg block, determine the distance the block will slide up along the plane before momentarily stopping. 300 m/s 30°
Situation 03. A bullet having mass of 0.002kg hits a stationary block of wood having a mass of 14kg. the coefficient of kinetic friction between the block and floor is 0.12, and the block slides 3mm on the floor as a result of impact. Compute the energy lost during the impact.
A bullet of mass 12 gm and cross sectional area 27 mm² and drag coefficient of 0.43 (assumed to be an invariant throughout) is fired horizontally with an initial velocity of 90 m/sec. Determine the horizontal distance from the firing point at which the horizontal velocity will be reduced to 50 m/sec due to air resistance (without any added mass contributing to drag). The density of air is 1.208 kg/m³. 10-31.
A small projectile is fired vertically downward into a fluid medium with an initial velocity of 60 m/s. Due to the drag resistance of the fluid the projectile experiences a deceleration of a = (-0.4v3) m2, where v is in m/s. Determine the projectile’s velocity and position 4 s after it is fired. Answer: v = 0.559 m/s, ↓, s = 4.43 m
A small projectile is fired vertically downward into a fluid medium with an initial velocity of 60 m/s. Due to the drag resistance of the fluid the projectile experiences a deceleration of a = (-0.40) m/s, where vis in m/s. Determine the projectile's velocity and position 4 s after it is fired.
A projectile launched at A with an initial velocity of 40 m/s at an angle 0 impacts the vertical wall at B. Neglecting air resistance. Determine the following: a. the value of 0 that will maximize the height "h"? b. the maximum height “h" c. time of impact at "B" V=40 m/s A, -x=D30m- कि
A uniform 10-kg bar OA is suspended from the pin at O. The bar is at rest when the 1.5 kg bal B with negligible diameter hits end A with a velocity of VB1-30 m/s. After the impact, the ball bounces off following the direction shown. 0 A VB2 1. What is the angular velocity of rod OA just after impact? 2. What is the coefficient of restitution between ball B and rod OA? B VB1 24 1.8 m
A projectile was launched from the top of a 25-m high building at a velocity of +35 m/s and at an angle of 28° with the horizontal. (a) How far is the projectile from the building (horizontally) by the time it reaches its maximum height? (Ans.: 51.82 m) (b) If the projectile lands on a hill 3 meters high from the ground, how long was the projectile airborne? (Ans.: 4.38 s) (c) If the projectile lands on a hill 3 meters high from the ground, how far is the hill from the building? (Ans.: 135.32 m)
Find the minimum and maximum value of 'u' so that the steel balls will be able to enter the 70mm hole. Note that 'u' is the initial velocity.
A bullet of mass m=0.1 kg is fired with a velocity v0=500 m/s forming an angle θ=30° with the horizontal and gets lodged in a wooden block of mass M=10 kg. The block can roll without friction on a hard floor and is prevented by springs from hitting the wall. Calculate theamplitude and period of vibration of the block and embedded projectile. Each one of the three springs has a stiffness k=3 kN∕m.
3. A small projectile is fired vertically downward into a fluid medium with an initial velocity of 60m/sec. Due to the drag resistance of the fluid the projectile experiences a deceleration of a = 0.4v³m/s?, where v is in m/s. Determine the projectile's velocity and position 4 seconds after it is fired.