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tomtom1 tomtom1
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10 years ago
I need some insights in to this question from my physics class.

A grasshopper leaps into the air at a 62 degree angle above the horizontal. At its highest point, the grasshopper's velocity and acceleration are equal to zero.
True/False
I think this statement is False because the vertical velocity (downward) at the highest point is zero. However, I also know that it has a horizontal velocity at the highest point. Also, the acceleration is downward at 9.81 m/s^2.

Is my logics and reasoning right?
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#1
10 years ago
If the grasshopper jumped -straight- up, the statement would be correct.

As the grasshopper has forward motion (it jumped at a 62 degree angle) in addition to upward/downward motion, the statement is false.

Your reasoning is more or less correct.
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#2
10 years ago
As the question is stated, your logics and reasoning are right.

But about one of the other answers: If the grasshopper jumped straight up, its velocity would be zero at the top, BUT not its acceleration.  Acceleration is 9.8 m/s^2 throughout.
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tomtom1234tomtom1234
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10 years ago
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