The unit of velocity is
m2s
ms-1
ms-2
sm-1
A particle is pushed always on a horizontal surface in such a way that it starts with a velocity of 12 m/s and decreases at the rate of 0.5 m/s2. The time it will take to come to rest is
42s
48s
24s
84s
Which of the following is a vector quantity.
force
velocity
momentum
all the above
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
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
Distance is _______.
Always positive
Always negative
Cannot say
May be positive or negative
When a body starts from rest, its _________ is zero.
initial velocity
initial distance
final velocity
final distance
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
The velocity of a car at 10.50 am is 60km/h and at 10.52am it is 80km/h. Assuming constant acceleration in the given period its value is
600km/h2
500km/h2
400km/h2
300km/h2
Which one of the following is a scalar quantity ?
Velocity
Acceleration
Speed
Retardation
