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2 years ago

50 POINTS!! BRAINLEST

Physics

2 answers:

likoan [24]2 years ago

8 0

Answer: pls mark me as a brainliest friend pls, it would be a great help for me friend

Explanation:

1. B

2. The graph that shows students data is graph b. It is constant so it’s velocity is constant.

Hope it’s useful friend…

Good luck and have a great day buddy…

Stay safe and happy…

Keep rocking !!

sergey [27]2 years ago

4 0

Answer:2 one

Explanation:

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3 years ago

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3 years ago

Katelyn (55 kg) is practicing a drop jump in the biomechanics lab. She steps off a plyometrics box, lands on the force plate, an

suter [353]

Answer:

J = 357.5 kg*m/s

Explanation:

The impulse exerted on Katelyn when she was on the force plate, is equal to the change in her momentum, according to Newton's 2nd Law.
Assuming as the positive direction the upward direction (coincident with the positive y-axis) we can express the initial momentum as follows:

$p_{o} = m*v_{o} = 55 kg * (-3.0 m/s) (1)$

By the same token, the final momentum is as follows:

$p_{f} = m*v_{f} = 55 kg * (3.5 m/s) (2)$

As we have already said, the impulse J is just equal to the change in momentum, i.e., the difference between (2) and (1):

$J = p_{f} - p_{o} = m* (v_{f} -v_{o}) = 55 kg* (3.5m/s- (-3.0m/s)) = 357.5 kg*m/s (3)$

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2 years ago