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1
is the unit of
Retardation
Acceleration
Rate of change of velocity
All the above
2
A body has an acceleration of -4 . What will be value of its retardation?
-4
zero
Nothing can be decided
3
If a car can accelerate at 3.2 meters per second squared how long will it take to speed up from 15 meters per second to 22 meters per second-
2.2s
1.2s
5s
4s
4
A racing car has a uniform acceleration of . What distance will it cover in 10s after the start from the rest.
200m
300m
150m
100m
5
The acceleration of a car that speed up from 12 meters per second to 30 meters per second in 15 seconds
6
The initial velocity of a cyclist was 4m/s. His acceleration is , its velocity after 5 seconds is _____________
12 m/s
10 m/s
14 m/s
8 m/s
7
If a car is traveling north on a straight road and its brakes are applied, it will-
Have no accleration
Accelerate to south
Accelerate to the north
Accelerate either east or west
8
The acceleration of a car that gets to a speed of 18 meters per second from rest while trabeling 240 meters-
9
If a car is travelling north on a straight road and its brakes are applied, it will -
have no acceleration
accelerate to the south
accelerate to the north
accelerate either east or west
10
A cyclist increases its velocity from 10 km/hr to 15 km/hr in 6 seconds.The Acceleration in is _____________
3000
11
An object with a mass 5kg moves at a constant velocity of . A constant force then acts for 5 seconds on the object and gives it a speed of in an opposite direction. The acceleration caused by the force is:
12
IF a car at rest accelerates uniformly to a speed of 144km/h in 20 sec.,it covers a distance of
20 cm
400 m
1440 cm
2980 cm
13
A car increases its speed from 20 km/hr to 50 km/hr. in 10 sec. Its acceleration is
30m/
3 M/
18 m/
0.83 m/
14
A car accelerates uniformly from 18 km/h to 36 km/h in 5 s. The distance travelled by the car is:
25.5 m
27.5 m
32.5 m
37.5 m
15
Which of the following relations is correct?