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Addie begins to push a cart down the hallway with a net force of 200 newtons. The cart accelerates uniformly from the rest to a speed of 2 m/sec in 1.2 seconds. what is the mass of the cart?

Respuesta :

MathPhys

Answer:

120 kg

Explanation:

Net force equals mass times acceleration.

∑F = ma

Acceleration is change in velocity over change in time.

∑F = m Δv / Δt

200 N = m (2 m/s − 0 m/s) / 1.2 s

m = 120 kg

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