Acceleration = (change in speed) / (time for the change).
Acceleration = (14 m/s - 0 m/s) / (3.5 s) = <u>4 m/s²</u>
Answer:
63.36 kJ
Explanation:
Potential energy (PE) is the energy stored within an object, due to the object's position, arrangement or state.
Since the Boulder is now on a height , it has a potential energy
<em>Potential Energy = mass * gravitational acceleration * height</em>
(Assume the gravitational acceleration = 10ms⁻²)
100 J
Explanation:
multiply the force by the distance
20 N x 5 meters = 100 J
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