If a car has a mass of 200 kilograms and produces a force of 500 n, how fast will the car accelerate?

if it took you 5 seconds to move a rock 15 meters using a force of 150 newtons, how much power did you need to use?

i. 2.5 m/s^2

ii. 450 watts

Explanation:

i. mass (M) = 200 kilograms and produces a force (F) = 500 N

From force is the product of mass and acceleration (F = M × A), how fast the car accelerates

A = F/M

A = 500/200

A = 2.5 m/s^2

ii, Time to move rock  t = 5 sec

Distance d = 15 m

Force F = 150N

Power P is the rate of doing work. work W is said to be done when a force moves a body through a distance.

P =W/t

W = F × d

P = F × d/t = 150 × 15/5

P = 450 watts

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