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Keith_Richards [23]
3 years ago
5

An object has a kinetic energy of 175 J and a momentum of magnitude 25.0 kg m/s. Find the

Physics
1 answer:
DedPeter [7]3 years ago
5 0

Answer:14 m/s

Explanation:

Kinetic energy(ke)=175J

Momentum(M)=25kgm/s

Speed=v

Mass=m

Ke=(m x v x v)/2

175=(mv^2)/2

Cross multiply

175 x 2=mv^2

350=mv^2

Momentum=mass x velocity

25=mv

m=25/v

Substitute m=25/v in 350=mv^2

350=25/v x v^2

350=25v^2/v

v^2/v=v

350=25v

v=350/25

v=14 m/s

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A toy car is moving across a table with a velocity of 7.0 m/s and drives off the end. The table is 1.8 m tall. How long will the
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Option D - 0.2 s

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7 0
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… … … … + 8 (i × k) + (j × k) - 2 (k × k)

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7 0
2 years ago
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