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3 years ago

John pushes his brother Danny on a skateboard. John applies a force of 29 N and Danny's acceleration is 0.4 m/s

Physics

2 answers:

belka [17]3 years ago

4 0

Answer:

Explanation:

Mumz [18]3 years ago

4 0

Answer:

The combined mass of Danny and his skateboard = m = 72.5 kg

Explanation:

Force applied by john = F = 29N

Danny’s Acceleration = a = 0.4 m/s

Combined mass of Danny and his skateboard = m = ?

According to Newton’s second law of motion:

F = ma

m = F/a

m = 29/0.4

m = 72.5 kg

Hence, the combined mass of Danny and his skateboard will be 72.5 Kg.

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hodyreva [135]

Initial velocity (u) = 0 m/s [the car was at rest]
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Let the magnitude of acceleration be a.
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Answer:

The magnitude of its acceleration is 1.6 m/s^2.

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