Question 1
According
to the velocity-time graph given below, what is the initial velocity of the
car?
2
m/s
0
m/s
1
m/s
1.5
m/s
Question 2
A
boy throws a ball up and catches it when the ball falls back. In which part of
the motion the ball is accelerating?
When
the ball comes to rest
When
the boy catches the ball
During
downward motion
During
upward motion
Question 3
A
racing car has a uniform acceleration of 6 m/s2. In 10s it will
cover:
300m
100m
350m
200m
Question 4
The
speed of a car is reduced from 60 kmph to 30 kmph over a displacement of 20 m.
What is the acceleration of the car assuming to be constant?
Question 5
(i)What type of motion OA, AB and BC represent in the above velocity-time graph?
(ii) Find out the acceleration and retardation of the body.
Question 6
Convert
1 km/h to m/s.
Question 7
A
motor boat starting from rest on a lake accelerates in a straight line at a
constant rate of 6m/s2 for 6 s. How far does the boat travel during
this time?(ans 108 m)
Question 8
A
car of mass 1800 kg moving with a speed of 10 m/s brought to rest after a
covering a distance of 50m. Calculate the force acting on the car.(ans -1800N)
