Diagram shows a boy is pulling a 50 kg box along a rough floor.

Which combination of forces F₁ and F₂ will produce an acceleration of 2 m s^-2?

A constant force of 20 N acts on a block placed on a rough surface as shown in Diagram.

If the friction is 5 N, the block will move with

Diagram shows Jamal drives a bike at a constant speed of 25 ms^-1. The two forces resisting motion are air friction of 30 N and frictional force of 80 N.

Determine the thrust force of the engine.

Which of the following produces the largest acceleration when forces are applied on a block?