A rubber ball (4 kg) falls from a height of 50 m and collides elastically with the floor. What is the velocity of the ball just after it rebounds from the floor?
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- a 4.0 kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vehicle wall. The particle rebounds with the speed of 3.0 m/s . what is the magnitude of the impulse deliveed to the particle.A 3-kg object moving with a velocity of 7 m/s in the positive x direction strikes and sticks to a 3-kg object moving with a speed of 2 m/s in the same direction. How much kinetic energy is lost in this collision?A steel ball of mass 0.440 kg is fastened to a cord that is 80.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal, as shown in the figure. At the bottom of its path, the ball strikes a 3.10 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find (a) the speed of the ball and (b) the speed of the block, both just after the collision. (a) Number i (b) Number Unit Unit
- In a ballistic pendulum experiment, a small marble is fired into a cup attached to the end of a pendulum. If the mass of the marble is 0.0285 kg and the mass of the pendulum is 0.250 kg, how high h will the pendulum swing if the marble has an initial speed of 5.85 m/s? Assume that the mass of the pendulum is concentrated at its end so that linear momentum is conserved during this collision. h = mA 0.730-kg projectile travels with a velocity or magnitude 66 km/h. What is the bullets linear momentumA 2.8 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed of 510 m/s , goes completely through the block, emerging at a speed of 210 m/s . What is the speed of the block immediately after the bullet exits?
- Situation 7. A ball of mass 0.220 kg that is moving with a speed of collides head-on and elastically with another ball initially at rest. Immediately after the collision, the incoming ball bounces backward with a speed of 3.8m/s. C. Supposed that a ball is dropped from a height of 2.60 m. If the coefficient of restitution between the ball and the ground is 0.60, to what height will it bounce?A steel ball of mass 0.610 kg is fastened to a cord that is 35.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal, as shown in the figure. At the bottom of its path, the ball strikes a 2.60 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find (a) the speed of the ball and (b) the speed of the block, both just after the collision. (a) Number (b) Number -1.623 100 Unit Unit m/s m/sA steel ball of mass 0.5 kg is fastened to a cord that is 70.0 cm long and fixed at the far end. The ball is then released when the cord is horizontal. At the bottom of its path, the ball strikes a 2.5 kg steel block initially at rest on a frictionless surface. The collision is elastic. Find (a) the speed of the ball and (b) the speed of the block both just after the collision.