Grade 12 Physics: Dynamics

Stay with one question long enough to think for yourself.

Inside the course

A glimpse of the questions.

Question 01

A 10 kg box is pulled across a rough horizontal surface by a rope that makes a 30° angle with the horizontal. The tension in the rope is 50 N, and the coefficient of kinetic friction between the box and the surface is 0.3. Calculate the acceleration of the box.

Question 02

A 60 kg person stands in an elevator that is accelerating upward at 1.5 m/s². Calculate the normal force exerted on the person by the elevator floor.

Question 03

Two blocks with masses of 4 kg and 6 kg are connected by a rope and placed on a frictionless horizontal surface. A force of 20 N is applied to the 4 kg block. Calculate the tension in the rope between the blocks.