A catapult fires an 800-kg rock with an initial velocity of 100 m/s at a 40° angle to the ground. The magnitude of the vertical impulse the catapult receives from the rock is

A.

5.1 × 104 Ns.

B.
6.1 × 104 Ns.

C.
8.0 × 104 Ns.

D.
5.0 × 105 Ns.

E.
6.0 × 105 Ns.


Answer: A

Physics & Space Science

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