Question: PHYSICS... 3. A 20 g bullet is fired point blank at a 1820 g block of ice hanging at the end of a long cord.

PHYSICS...

3. A 20 g bullet is fired point blank at a 1820 g block of ice hanging at the end of a long cord. If the bullet became embedded in the block and both swung to a height of 10 cm, calculate the initial velocity of the bullet. If the bullet is fired from a 2 kg rifle, calculate the recoil velocity of the rifle. 27 4. A 10 g rubber bullet fired at a 120 g block of a ballistic pendulum caused the block to swing to a height of 2 cm. if the bullet bounces backwards at 60 cm/s, calculate its initial velocity. 5. A 6000 kg truck traveling north at 5 m/s collides with a 400 kg truck travelling east at 15m/s. if the two trucks remain locked together after the impact, with what speed and in what direction do they move immediately after the collision

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