A catapult fires an 800-kg rock with an initial velocity of 100 m/s at a 40 $\degree$ angle to the ground. The magnitude of the horizontal impulse the catapult receives from the rock is:
A)5.1* 104 N $\cdot$ s.
B)6.1 * 104 N $\cdot$ s.
C)8.0 * 104 N $\cdot$ s.
D)5.0 * 105 N $\cdot$ s.
E)6.0 * 105 N $\cdot$ s.

Question

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The Answer of A catapult fires an 800-kg rock with an initial velocity of 100 m/s at a 40 $\degree$ angle to the ground. The magnitude of the horizontal impulse the catapult receives from the rock is:
A)5.1* 104 N $\cdot$ s.
B)6.1 * 104 N $\cdot$ s.
C)8.0 * 104 N $\cdot$ s.
D)5.0 * 105 N $\cdot$ s.
E)6.0 * 105 N $\cdot$ s.

A Catapult Fires an 800-Kg Rock with an Initial Velocity °\degree°

A Catapult Fires an 800-Kg Rock with an Initial Velocity $\degree$