Advertisements
Advertisements
प्रश्न
Diagram is given below shows velocity – time graph of car P and Q, starting from the same place and in the same direction. Calculate the Acceleration of car P.
Advertisements
उत्तर
Acceleration of car P = Slope of v.t. graph (OA) for car P.
= `"AB"/"OB"=35/10` = 3.5 ms−2
APPEARS IN
संबंधित प्रश्न
Give a scientific reason.
When an object falls freely to the ground, its acceleration is uniform.
An object of mass 16 kg is moving with an acceleration of 3 m/s2. Calculate the applied force. If the same force is applied to an object of mass 24 kg, how much will be the acceleration?
Distinguish between acceleration and retardation.
A bullet initially moving with a velocity 20 m/s strikes a target and comes to rest after penetrating a distance 10 cm into the target. Calculate the retardation caused by the target.
Give an example of an accelerated body, moving with a uniform speed.
A body falls towards the earth. Does it have positive or negative acceleration?
A car traveling at 60 km/h, stops on applying brakes in 10 seconds. What is its acceleration?
The graph shows how the velocity of a scooter varies with time in 50 s.
Work out: Acceleration.
A car accelerates to a velocity of 30 m/s in 10 s and then decelerates for 20 s so that it stops. Draw a velocity-time graph to represent the motion and find:
Distance travelled
Assertion: When a body is subjected to a uniform acceleration, it is always moving in a straight line.
Reason: Motion may be straight-line motion or circular motion.
