Question

an object with mass 20kg accelerated from a velocity of 10m/s to 15m/s in 25s calculate initial momentum

Answer 1

Answer:

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An object with mass 20kg accelerated from a velocity of 10m/s to 15m/s in 25s calculate initial momentum.

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a = v - u

t

= 15 - 10

25

a = 0.2ms^-1

Therefore Pi = v(initial)m

= 10 × 20

= 200ms^-1

Pf = v(final) m

= 15 × 20 = 300ms^-1

F = ma

= 20 × 0.2

= 4N