The rate of change of displacement is
Speed
Velocity
Acceleration
Retardation
The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:
200 m
225 m
245 m
250 m
A train 240 m long passes a pole in 24 seconds. How long will it take to pass a platform 650 m long?
65 sec
89 sec
100 sec
150 sec
1 Km/hour=
18/5 m/s
16/5 m/s
5/18 m/s
none of these
A particle has a value of 46.0 ms^{-1}. It may be the
force of the particle
velocity of the particle
momentum of the particle
acceleration of the particle
In C.G.S System unit of Velocity is
cm/sec
m/sec
cm/sec^{2 }
None of these
In MKS system units of acceleration is
Cm/sec
m/s
m/sec^{2}
A body is said to move with _________ if it covers equal displacement in equal intervals of time.
Uniform velocity
The diagram below shows a worker using a rope to pull a cart. The worker’s pull on the handle of the cart can best be described as a force having.
magnitude, only
direction, only
both magnitude and direction
Equation for acceleration, =