Question

Short Answer Type Questions
17. Is the uniform circular motion accelerated ? ? Give reasons for your answer
.
18
Write the formula to calculate the speed of a body moving along a circular path. Give the meaning
symbol which occurs in it.
19. Fxplain why, the motion of a body which is moving with constant speed in a circular path is said
accelerated.
20. What is the difference between uniform linear motion and uniform circular motion ? Explain with exa
21. State an important characteristic of uniform circular motion. Name the force which brings about u
circular motion.
22. Find the initial velocity of a car which is stopped in 10 seconds by applying brakes. The retardation
brakes is 2.5 m/s2
Describe the motion of a body which is accelerating at a constant rate of 10 m s. If the body starts fro
how much distance will it cover in 2 s?
torcycle moving with a speed of 5 m/s is subjected to an acceleration of 0.2 m/s2. Calculate the s
worcycle after 10 seconds, and the distance travelled in this time.
ming at a speed of 18 km/h is stopped in 2.5 seconds by applying brakes. Calculate the reta
24. A motorcycle movi
the motorcycle after
25. A bus running at a spee
produced
26. A train starting from
ng from rest moves with a uniform acceleration of 0.2 m/s2 for 5 minutes. Calculatet​

Answer 1

Answer:

In order to calculate the speed of a body along a circular path, one should divide the circumference of the circle by the time (t) taken to tranverse the circle . therefore, the total circumference of a circle= 2*pi*r.