WorksheetsKinematics and Dynamics 2
Total questions: 6
Worksheet time: 12mins
Four cars, A, B, C and D, move from rest in a straight line. The cars take the same time to accelerate to a velocity of 60 km h–1. Their velocity–time graphs are shown.
Which car reaches a velocity of 60 km h–1 in the shortest distance?
A
B
C
D
A skydiver, who is falling vertically through the air, opens his parachute.
Which row describes the velocity of the skydiver immediately after he opens his parachute?
A
B
C
D
A mass of 30 kg is suspended from the end of a wire. A horizontal force F acts on the mass so that it is in equilibrium, with the wire at an angle of 30° to the vertical, as shown.
What is the magnitude of F ?
17 N
150 N
170 N
510 N
\A car moves with uniform acceleration along a straight road. Oil leaks from the car at the rate of one drop every two seconds. The diagram shows the distances between three successive oil drops on the road.
What is the acceleration of the car?
0.75 m s-2
1.5 m s-2
3.0 m s-2
6.0 m s-2
A person of mass 60 kg stands on accurate bathroom scales, placed on the floor of an elevator (lift) which operates in a tall building.
At a certain instant the bathroom scales read 58 kg.
Which row could give the person’s direction of movement and type of motion?
A
B
C
D
The diagram shows graphs of various quantities plotted against time for an object dropped from a stationary balloon high in the atmosphere.
Which statement could be correct?
Graph 1 is acceleration against time and graph 3 is resultant force against time.
Graph 1 is acceleration against time and graph 4 is resultant force against time.
Graph 3 is acceleration against time and graph 1 is velocity against time.
Graph 3 is acceleration against time and graph 2 is velocity against time.
