Advertisements
Advertisements
प्रश्न
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
Advertisements
उत्तर
(a) The given equation is the first equation of motion i.e.,
v = u + at
Where,
(a) - Acceleration
(v) - Final velocity
(u) - Initial velocity
(t) - Time taken
It gives the velocity acquired by a body in time t provided initial velocity and acceleration is known
APPEARS IN
संबंधित प्रश्न
A train starting from a railway station and moving with uniform acceleration attains a speed 40 km h−1 in 10 minutes. Find its acceleration.
Find the initial velocity of a car which is stopped in 10 seconds by applying brakes. The retardation due to brakes is 2.5 m/s2.
A train starting from stationary position and moving with uniform acceleration attains a speed of 36 km per hour in 10 minutes. Find its acceleration.
When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then retardation will be :
A car starting from rest acquires a velocity 180m s-1 in 0.05 h. Find the acceleration.
For a uniformly retarded motion, the velocity-time graph is _____________
Derive the following equations for uniformly accelerated motion:
(i) v = u + at
(ii) `"S = ut" + 1/2 "at"^2`
(iii) v2 = u2 + 2aS
where the symbols have their usual meanings.
How can you find the following?
Acceleration from velocity – time graph.
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
