A body starting from rest is travelling with an acceleration of 6 m/s2. Calculate the distance travelled by it in the 5th second.
75m
27m
30m
75m/s
The unit of acceleration is __________.
ms-1
ms-2
ms
km/m
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
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
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
Acceleration of an object is equal to
speed / time
velocity / time
change in velocity / time
change in speed/ time
A car moving a speed of 54km/ h an applying brakes stopped in 8 seconds. Calculate the acceleration.
15/8 m/s2
120 m/s2
-15/8 m/s2
-120m/s2
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
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
