Advertisements
Advertisements
प्रश्न
Multiple choice Question. Select the correct option.
At the maximum height, a body thrown vertically upwards has :
पर्याय
velocity not zero but acceleration zero.
acceleration not zero but velocity zero.
both acceleration and velocity are zero.
both acceleration and velocity are not zero.
Advertisements
उत्तर
acceleration not zero but velocity zero.
APPEARS IN
संबंधित प्रश्न
Name the quantity which is measured by the area occupied under the velocity-time graph.
Explain why, the motion of a body which is moving with constant speed in a circular path is said to be accelerated.
A bus running at a speed of 18 km/h is stopped in 2.5 seconds by applying brakes. Calculate the retardation produced.
Derive the formula : v = u + at, where the symbols have usual meanings.
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.
Give one example of following motion :
Variable acceleration
When is the negative acceleration?
How will the equations of motion for an object moving with a uniform velocity change?
The velocity-time graph (Fig. 8.5) shows the motion of a cyclist. Find (i) its acceleration (ii) its velocity and (iii) the distance covered by the cyclist in 15 seconds.
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?
