A 20 g bullet moving at 400 m/s is fired horizontally into a wooden block resting on a frictionless horizontal surface. The bullet remains embedded in the block, which is observed to move with a speed of 1 m/s. What was mass of the block? 0.02 kg 2.00 kg 202 kg 3.29 kg 7.98 kg
Added by Barry K.
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This law states that the total momentum before an event must be equal to the total momentum after the event. Before the bullet was fired, the total momentum was the momentum of the bullet only, because the block was at rest. The momentum of an object is Show more…
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