Acart rolling down an incline for 5.0 seconds has an acceleration of 4.0 m/s .if the cart has an initial speed of of 2.0 m/s ,what's its final speed.

solve it with the following formula:

Vf = Vi + at

Final velocity = initial velocity + ( acceleration × time)

Explanation:

Putting the values

Vf = 2.0m/s+ 4.0m/s²× 5.0s

Vf = 2.0m/s +20.0 m/s (m/s² × s = m/s)

Vf = 22.0 m/s

if the forces acting on an object are unbalanced, the object will accelerate in the direction of the net force on the object.

explanation:

this is best explained by having an understanding of newton's second law, which states that f=ma. you see, when the forces are unbalanced, net force (sum of all forces) is not zero. therefore making it necessary for the object to have an acceleration in the direction of the net force.

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