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ipn [44]
3 years ago
11

What force is needed to accelerate a child on a sled at 1.25 m/s² is the total mass of the child and sled is 60 kg?

Physics
1 answer:
OverLord2011 [107]3 years ago
5 0

Newton's 2nd law of motion:  (Honestly, if you don't
remember this by now, you're going to have problems.)

                           Force  =  (mass) x (acceleration).

                                        =  (60 kg) x (1.25 m/s²)

                                        =          90  kg-m/s²

                                        =          90 Newtons .

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A motorcycle has a mass of 2.50×10^2. A constant force is exerted on it for 60.0s. The motorcycles initial velocity is 6.00 m/s
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The change in momentum is 5500 kg m/s

Explanation:

The change in momentum of an object is given by

\Delta p = m(v-u)

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m is the mass of the object

v is the final velocity

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In this problem, we have:

m=2.50\cdot 10^2 kg (mass of the motorcycle)

v=28.0 m/s (final velocity)

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Therefore, the change in momentum is

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Learn more about change in momentum:

brainly.com/question/9484203

#LearnwithBrainly

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