A constant force of magnitude F acts on an object of mass 0.04kg initially at rest at a point O. if the speed of the object when it has moved 50m from O is 500ms^-1, what is the value of F?

0.4N

100.0N

250.0N

1000.0N

Correct answer is B

F = ma and V² = U² + 2aX

F = m\(\frac{(V^2 - U^2)}{2X}\)

= 0.04\(\frac{(500^2 - 0^2)}{2 \times 50}\)

F = 100N

See all Physics questions & answers

See more JAMB questions & answers

A constant force of magnitude F acts on an object of mass 0.04kg initially at rest at a point O. if the speed of the object when it has moved 50m from O is 500ms-1, what is the value of F?