A racing car has a uniform acceleration of 4 m s-2. What distance will it cover in 10 s after start?
250 m
140 m
150 m
200 m
A bus starting from rest moves with a uniform acceleration of 0.1 m/s2 for 2 minutes.Find the speed acquired and the distance travelled.
12 m/s, 720 m
14 m/s,620 m
12 m/s,700 m
10 m/s,720 m
A bus decreases its speed from 80 km/h to 60 km/h in 5 seconds.Find the acceleration of the bus.
1.11 m/s2
-1.11 m/s2
2.11 m/s2
-2.11 m/s2
A car travelling at a speed 54 km/hr is brought to rest in 90 s .Find the retardation and distance travelled by the car before coming to rest .
0.16 m/s2 , 675 m
0.4 m/s2 , 600 m
2 m/s2 , 500 m
None of these
Rate of change of velocity is _________ .
Velocity
Acceleration
Speed
Displacement
In the equation s = ut + 1/2 at2 what does s represent .
distance
speed
velocity
Acceleration.
Acceleration of an object is equal to
speed / time
velocity / time
change in velocity / time
change in speed/ time
A particle is pushed always a horizontal surface in such a way that it start with a velcoity of 12 m/s and decreases at the rate of 0.5 m/s2. The time it wil take to come to rest is
42 s
48 s
24 s
84 s
What is the SI unit of acceleration ?
km/h2
m/s2
m/h2
km/s2
A car starts at a speed of 5 m/s and accelerates at 2.5 m/s2 .What distance must the car should travel to reach a speed of 10m/s ?
20 m
15 m
17 m
12 m
