Advertisements
Advertisements
Question
During circular motion, which physical quantity of the body:
Remains constant
Advertisements
Solution
During circular motion
Speed remains constant.
APPEARS IN
RELATED QUESTIONS
Suppose the two photographs, shown in Figure 1 and Figure 2, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the fastest car.
Figure 1 Vehicles moving in the same direction on a road
Figure 2 Position of vehicles shown in Figure 1 after some time
Do speed and average speed of a body have the same meaning?
Which is greater?
(i) 60 km/hr
(ii) 15 m/s
A girl had designed a clap switch for a science exhibition that enabled her to switch on or off an alarm just with clapping of hands. While testing her device in a hall, she noticed that once the alarm has sounded it followed with another one due to echo of the clap, that is, the sound reflected by the walls. She recorded the two soundings of alarm with her tape recorder and found out that time difference in between them is 0.1 s. If the distance of the walls be 15 m, calculate the speed of sound.
On a 120 km track, a train travels the first 40 km at a uniform speed of 30 km/h. How fast must the train travel the next 80 km, so as to average 60 km/h for the entire trip.
Asher says all objects having uniform speed need not have uniform velocity. Give reason.
The correct symbol to represent the speed of an object is ______.
Paheli and Boojho have to cover different distances to reach their school but they take the same time to reach the school. What can you say about their speed?
A bus travels, a distance of 20 km from Chennai central to the airport in 45 minutes. What is the average speed?
Abus from Chennai travels to Trichy passes loo km, 160 km at 10.15 am, 11.15 am respectively. Find the average speed of the bus during 10.15 – 11.15 am.
