Advertisements
Advertisements
प्रश्न
A motorcycle is being driven at a speed of 20 m/s when brakes are applied to bring it to rest in five seconds. The deceleration produced in this case will be :
विकल्प
+ 4 m/s2
− 4 m/s2
+ 0.25 m/s2
−0.25 m/s2
Advertisements
उत्तर
We have,
Initial velocity = 20 m/s
Final velocity = 0 m/s
Time taken = 5 sec.
So,
Deceleration = – Acceleration
= –(0 – 20)/5
= 4 m/s2
So, the answer is + 4 m/s2
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
Two boys cycling on the road with the same speed are _______ relative to each other.
Comment on the statement ‘rest and motion are relative terms’. Give an example.
In the speed-time graph for a moving object shown here, the part which indicates uniform deceleration of the object is :
Hi! Friends! Tell me what type of motion. I am in.
A bike moving on a straight road is an example for ______ motion.
What do you mean by uniform motion?
If Priya in her cycle travels 40 km in 2 hours then what is her average speed of ______.
The movement of a body about its own axis is ______.
Correct the following.
1 m = 1000 cm
Rest and motion of the body are ______.
