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1
The intial velocity of a body is 15m/s if it is having an acceleration of then the velocity of body after 10 seconds from start-
110m/s
105m/s
120m/s
115m/s
2
A car driver accelerates the car to increase its speed from 30 km to 60 km in 5 min. Arrange the following steps in a sequence to obtain the acceleration of the car.
EABCD
ABCDE
DBCAE
EDCBA
3
The speed of a car reduces from over a displacement of 10 m. What is the unifomr acceleration of the car ?
4
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
5
is the unit of
Retardation
Acceleration
Rate of change of velocity
All the above
6
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
7
IF a car at rest accelerates uniformly to a speed of 72 km/h in 10 sec.,it covers a distance of
20 cm
100 m
1440 cm
2980 cm
8
The speed of a car reduces from over a displacement of 8 m. What is the unifomr acceleration of the car ?
9
Which one of the following relation is correctly expressed?
100km/h=2.5 cm s-1
100km/h=2770cm s-1
100km/h=90cms-1
100km/h=300cms-1
10
A body is dropped from the top of a tower. If its average velocity , when it reaches the ground , is and the time taken by it to reach the ground is 2sec ; the height of the tower is _______________ m.
20
40
25