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kykrilka [37]
3 years ago
9

Julie and Ashwin were doing an experiment in the classroom. They

Physics
1 answer:
valina [46]3 years ago
4 0
B, he has to apply less force to lift the box because the mass has decreased.

The equation for force is
F=ma

If m is decreased by half, then f decreases as well. It takes less force to push a lighter object across the floor.
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Answer:

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Explanation:

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The time of flight, instead, is only determined by the vertical motion of the ball: however, in this problem the vertical velocity is not changed (it is zero in both cases), so the time of flight remains the same.

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in the second case, the horizontal velocity is increased to

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3 years ago
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