Advertisements
Advertisements
प्रश्न
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Advertisements
उत्तर
A car running on a road at a constant velocity. Then v – t graph will be same as shown by
APPEARS IN
संबंधित प्रश्न
Fill in the following blank with suitable word :
A motorcycle has a steady……………. of 3 m/s2. This means that every………………. its…………….. increases by………….
Name the quantity which is measured by the area occupied under the velocity-time graph.
Explain the meaning of the following equation of motion :v = u + at, where symbols have their usual meanings.
A body starting from rest travels with uniform acceleration. If it travels 100 m in 5 s, what is the value of acceleration ?
A bus was moving with a speed of 54 km/h. On applying brakes it stopped in 8 seconds. Calculate the acceleration.
A body starts from rest and acquires a velocity 10 m s-1 in 2 s. Find the acceleration.
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.
Multiple choice Question. Select the correct option.
At the maximum height, a body thrown vertically upwards has :
Area under a v – t graph represents a physical quantity which has the unit
An electron moving with a velocity of 5 × 104 ms−1 enters into a uniform electric field and acquires a uniform acceleration of 104 ms–2 in the direction of its initial motion.
(i) Calculate the time in which the electron would acquire a velocity double of its initial velocity.
(ii) How much distance the electron would cover at this time?
