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3 years ago

8

A ball is launched horizontally at 150 m/s from a cliff. What is its horizontal velocity after 3 seconds? A. 0 m/s B. 30 m/s C.

150 m/s D. 50 m/s

1 answer:

djyliett [7]3 years ago

7 0

Answer:

50m/s

Explanation:

Formula:

velocity= distance/ time

velocity= 150/ 3

velocity= 50 m/s

I hope this helped you :)

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A truck covers 40.0 m in 7.45 s while uniformly slowing down to a final velocity of 3.50 m/s.

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(B) Acceleration will be $-0.5026m/sec^2$

Explanation:

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Final velocity v = 3.50 sec

According to second equation of motion

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According to first equation of motion

v = u + at

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Solving equation 1 and 2

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4 years ago

A 4.0 kg mass is attached to a spring whose spring constant is 950 N/m. It oscillates with an amplitude of 0.12 m. What is the m

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Answer:

velocity = 2.62m/s

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950= (4 x A)/0.12

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3 years ago