# Answer on Other Physics Question for Ritwija

Question #68555

8. An artificial satellite is moving in a circular orbit of radius 36,000 km. Calculate its speed if it

takes 24 hours to revolve around the earth.

9. A bus travels a distance of 120 km with a speed of 40 km/h and returns with a speed of 30

km/h.

Calculate the average speed for the entire journey.

12. A particle moves over three quarters of a circle of radius r. What is the magnitude of its

displacement?

13. A bus accelerates uniformly from 54 km/h to 72 km/h in 10 seconds Calculate

(i) acceleration in m/s2

(ii) distance covered by the bus in meters during this interval.

takes 24 hours to revolve around the earth.

9. A bus travels a distance of 120 km with a speed of 40 km/h and returns with a speed of 30

km/h.

Calculate the average speed for the entire journey.

12. A particle moves over three quarters of a circle of radius r. What is the magnitude of its

displacement?

13. A bus accelerates uniformly from 54 km/h to 72 km/h in 10 seconds Calculate

(i) acceleration in m/s2

(ii) distance covered by the bus in meters during this interval.

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