A 9.7-g bullet is fired into a stationary block of wood having mass m = 5.10 kg. The bullet imbeds into the block. The speed of the bullet- plus-wood combination immediately after the collision is 0.606 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.)
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- A 0.018-kg bullet is fired into a stationary block of wood of mass of 4.95 kg. The relative speed of the bullet with respect to the wood is zero after collision (The bullet becomes embedded in the block of wood). What is the speed of the bullet-plus-wood combination immediately after collision if the speed of the bullet before collision is 469 m/s? Express your answer in two decimal places and with units of m/s.A 1.1 kg ball drops vertically onto a floor, hitting with a speed of 20 m/s. It rebounds with an initial speed of 11 m/s. (a)What impulse acts on the ball during the contact? (b) If the ball is in contact with the floor for 0.0196 s, what is the magnitude of the average force on the floor from the ball?A block with mass M = 6.10 kg is sliding in the positive x-direction at Vi = 8.90 m/s on a frictionless surface when it collides elastically in one dimension with a stationary block with mass m = 1.40 kg. Determine the velocities, Vf and Vf of the objects after the collision. Vf= ___m/s Vf=___m/s
- Box 1 is sitting at rest. Box 2 is moving to the left when it collides elastically with Box 1 (see figure). The surface is frictionless. Take the right to be the positive x-direction.The mass of Box 1 is 3.80 kg. The mass of Box 2 is 5.20 kg. The speed of Box 2 is 1.30 m/s before the collision.What is the velocity of Box 1 after the collision?Two 500 g blocks of wood are 2.0 m apart on a frictionless table. A 11 g bullet is fired at 450 m/s toward the blocks. It passes all the way through the first block, then embeds itself in the second block. The speed of the first block immediately afterward is 5.6 m/s. What is the speed of the second block after the bullet stops? Express your answer to two significant figures and include the appropriate units. V= μA Value m S ?Three carts of masses 4 kg, 5 kg, and 10 kg move on a frictionless horizontal track with speeds of 4 m/s, 8 m/s, and 8 m/s. The carts stick together after colliding. Find the final velocity of the three carts. Answer in units of m/s
- A 100-g bat collides with a stationary 1.2 kg teddy bear. Immediately after the collision, the bat is traveling at an angle of 55 degrees from its original path. The bear is traveling in a direction 35 degrees from the original path of the bat. (All the motion occurs in two dimensions). If the bear is moving at 0.060 m/s immediately after the collision, how fast is the bat moving after the collision?A 0.60 kg ball is thrown horizontally at 20 m/s in the -x direction and collides with a 5.0 kg box which is at rest on a frictionless floor. After the collision, the ball is traveling at 15 m/s in the +x direction. What is the box's velocity after the collision (all answers below are in the +x or -x direction; the figure below shows the directions of the ball's velocities)? Before: After: ÜBox;a =? ÜBOX;b = 0 îbalu;b of Ûdall;a %3D O -4.2 m/s O 5.0 m/s O -35 m/s O -20 m/s O 21 m/sA block with mass M = 5.70 kg is sliding in the positive x-direction at Vi = 8.45 m/s on a frictionless surface when it collides elastically in one dimension with a stationary block with mass m = 1.75 kg. Determine the velocities, Vf and vf, of the objects after the collision. Vf = m/s vf = m/s
- A 51 kg boy on roller skates moves with a speed of 3 m/s. He runs into a 42 kg girl on skates. Assuming they cling together after the collision, what is their speed (in m/s)? (Assume the girl is initially at rest.) m/sA 10.50-g bullet is fired into a stationary block of wood having mass m = 4.980 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.6090 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.) m/sA 10.50-g bullet is fired into a stationary block of wood having mass m = 4.980 kg. The bullet imbeds into the block. The speed of the bullet-plus-wood combination immediately after the collision is 0.6090 m/s. What was the original speed of the bullet? (Express your answer with four significant figures.) O 289.449