A 30 kg block with velocity 50 m/s is encountering a constant 8 N friction force. What is the momentum of the block after 15 seconds?

vf = 46 m/s

Explanation:

An impulse results in a change of momentum

FΔt = mΔv

-8(15) = 30Δv

Δv = -4 m/s

50 + (-4) = 46 m/s

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therefore to conclude i would like to say that,

=more the cloud cover, the lesser the

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photocells convert light energy to electricity