Which of the following is a vector quantity.
force
velocity
momentum
all the above
A particle is pushed along a horizontal surface in such a way that it starts with a velocity of 12m/s and decreases at the rate of 0.5 m/s2. The time it will take to come to rest is:
42s
24s
48s
84s
When a body undergoes changes in equal velocity in equal intervals of time, then the body is said to be in _________.
Uniform acceleration
Positive acceleration
Uniform speed
Positive speed
A car is moving with a speed of 10m/s and travel a distance of 132 m in 6 seconds. Calculate its acceleration.
-4ms-2
4ms-2
4ms-1
-4m-1
A car starts from rest and moves with uniform acceleration of 0.6m /sec2 for 5 minutes. Calculate the velocity required by the car.
3 m/s
3 m/s2
180m/s
180 m/s2
A particle moving with an initial velocity of 5 m/s is subjected to a uniform acceleration of -2.5m/s-2. The displacement in the next 4 seconds is
40m
0
20m
60m
When a body starts from rest, its _________ is zero.
initial velocity
initial distance
final velocity
final distance
A bus travels a distance with a speed of 50km/ hr and returns with a speed of 40 km/hr. Find the average speed of the whole journey.
44.4m/s
44.4km/hr
45km/hr
45m/s
The driver in a car moving with a speed of 10ms-1 increases the speed at the rate of 10ms-1 for 5 seconds. What is the maximum speed attained by the car.
20ms-1
20ms-2
60 ms-2
60ms-1
A particle is travelling with a constant speed, This means that
its position remains constant as time passes
it covers equal distances in equal time intervals
its acceleration is zero
it does not change its direction of motion
