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A lift takes a man to a sky bridge, which is 100 m above the ground, as shown below.He makes a bungee jump from the sky bridge. Ignore the effects of air resistance. 5.1 Define the term kinetic energy. (2) 5.2 The man and his gear have a mass of 72 kg. Calculate the gravitationalpotential … Read more

A car accelerates from rest at 15 m∙s-2 for 2 s on a horizontal road. 4.1 Define the term acceleration. (2) 4.2 Calculate the: 4.2.1 Distance covered by the car (3) 4.2.2 Velocity of the car (3) While travelling at a constant velocity of 108 km∙h-1, the driver of a car notices a sign warning … Read more

The engineers at a car company conduct various tests on their cars. During one of the tests they measure the change in position during equal time intervals. The results obtained are recorded in the table below. 3.1 Give the correct term for change of position per unit time. (1) 3.2 For this test, write down … Read more

A brother and sister walk home from school. After walking 500 m eastwards, the brother realises that he has left a book at school and he returns to school. His sister continues walking another 800 m to their home. She arrives home 30 minutes after leaving school. 2.1 Define the term average speed. (2) 2.2 … Read more