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

question 15

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 horizontal 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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