Question

An object of mass 100 kg is accelerated uniformly from a velocity of 5ms to 6m/s in 6s. Calculate initial and final momentum of the obiced. Also find the magnitude of force exerted on the object​

Answer 1

Answer:

Initial velocity of the object (u) = 5 m/s

Final velocity of the object (v) = 6 m/s

Mass of the object (m) = 100 kg

Time take by the object to accelerate (t) = 6 s

Initial momentum = mu = 100 × 5

⇒ mu = 500 kg m/s

Final momentum = mv = 100 × 6

⇒ mv = 600 kg m/s

Let us calculate the Force exerted on the object (F)

F = (mv – mu) / t

F = (600 – 500)/6

F = 100 / 6

F = 16.67 N approx

Initial momentum of the object is 500 kg m sˆ1.

Final momentum of the object is 600 kg m sˆ1.

Force exerted on the object is 16.67 N

Answer 2

Explanation:

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