A bullet is fired from the cart vertically at the same instant ca… - Vidyadip

MCQ

A bullet is fired from the cart vertically at the same instant cart begins to accelerate forward. Which of the following best describes the subsequent motion of the bullet?

A
The bullet goes up and then straight back down into the cart.
B
The bullet goes up and lands in front of the cart.
✓
The bullet goes up and lands behind the cart.
D
The bullet stops in the air as the cart is accelerating and "floats" until the cart stops accelerating.

✓

Answer

Correct option: C.

The bullet goes up and lands behind the cart.

As the bullet is fired vertically upwards, thus the bullet does not have velocity in horizontal forward direction and hence it has zero horizontal displacement.
Also the cart has acceleration in forward direction, thus the cart has finite displacement in forward direction.
Hence the bullet goes up and lands behind the cart.

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