Motion equations

The graph shows the change in velocity of an object with time.

What is the object’s displacement?

• 525 m

• 300 m

• 225 m

A bicycle has an initial velocity of 12 m/s and it accelerates for 15 s in the direction of its velocity, moving 220 m during that time. What is the bicycle’s rate of acceleration?

• 0.36 m/s2

• 1.2 m/s2

• 1.5 m/s2

An object has an initial velocity that increases to 14 m/s as the object accelerates at 5 m/s2 in the direction of its velocity. The object accelerates along a 17.1 m long straight line. What is the object’s initial velocity

• 5 m/s

• 25 m/s

• 3 m/s

An object has an initial velocity that decreases to 10 m/s as the object accelerates in the opposite direction to its velocity. The object moves along a 60 m long straight line accelerating with a magnitude of 6.5 m/s2.What is the object’s initial velocity?

• 29.7 m/s

• 45 m/s

• 50 m/s

A graph between the square of the velocity of a particle and the distance s moved by the particle in the north direction is shown in the figure.

The velocity after 2 seconds is..

• 17 m/s north

• 9 m/s south

• 1 m/s south