15) Straight Line and Projectile Motion

Question 1

State which feature of a displacement-time graph represents the velocity.

Answer 1

gradient.

Question 2

State how a velocity-time graph could be used to find the maximum acceleration

Answer 2

maximum gradient.

Question 3

State what is meant by the centre of mass of an object.

Answer 3

All the mass of the object appears to be concentrated at the centre of mass.