Questions Flashcards
1
Q
Calculate the work done when a force of 20N makes an object move 4.8m in the direction of the force
A
96J
2
Q
Calculate the work done when an object of weight 80N is raised through a hight of 1.2m
A
96J
3
Q
When a cyclist breaks, kinetic energy store is reduced from 1400J to zero in a distance of 7m. Calculate the breaking force
A
4
Q
a student pushes a box 12m. And provided a horizontal force of 25N to the box. Calculate the work done
A
300J
5
Q
When a ball of weight 1.4N is dropped from rest of height 2.5m above a flat surface, it rebounds to a height of 1.7m above the surface. Calculate the total energy lost
A
