You need to log-in or subscribe in order to use Student access.

Problems: Work and Energy

1. A ball of mass 0.16kg is thrown upwards with an initial velocity of 25ms-1 and reaches a maximum height of 20m. Calculate the percentage loss of energy due to air resistance.2. A body of mass 5kg is projected up a board inclined at an angle of 30°to the horizontal with an initial velocity of 6ms-1. Assuming that the frictional force is a constant 4.5N calculatea) the distance travelled before coming to rest

To access the entire contents of this site, you need to log in or subscribe to it.

Alternatively, you can request a one month free trial.