A Catapult Fires an 800-Kg Rock with an Initial Velocity

question 79

Multiple Choice

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 N s.
• B) 6.1 × 10⁴ N s.
• C) 8.0 × 10⁴ N s.
• D) 5.0 × 10⁵ N s.
• E) 6.0 × 10⁵ N s.

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