play-icon

Instantaneous speed, velocity, and acceleration

12 MinsPhysics
audioIcon

Language

smileIcon

Rate

NEXT VIDEOS

REVISE WITH CONCEPTS

Instantaneous Velocity and Instantaneous Speed

ExampleDefinitionsFormulaes

QUICK SUMMARY WITH STORIES

Important Questions

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is : 

View solution
>

A man walks on a straight road from his home to a market  away with a speed of . Finding the market closed, he instantly turns and walks back home with a speed of . What is the
(a) magnitude of average velocity, and
(b) average speed of the man over the interval of time
(i)  to ,
(ii)  to  
(iii)  to

View solution
>

The position of an object moving along x-axis is given by x = a + , where a = 8.5 m and b = 2.5 m and t is measured in seconds. The average velocity of the object between t = 2 s and t = 4 s is

View solution
>

A car travels from A to B at a, speed of and returns at a speed of . The average speed of the car for the whole journey is:

View solution
>

A car travels the first one third of a certain distance with a speed of 10 km/hr, the next one third with a speed of 20 km/hr and the last one third distance with a speed of 60 km/hr The average speed of the car for the whole journey is

View solution
>

A car covers the first half the distance  between two places at 40 km/h another half at 60 km/h, the average speed of car

View solution
>

An artificial satellite is moving in a circular orbit of radius 42250 km. Calculate its speed if it takes 24 hours to revolve around the earth.

View solution
>

A particle moving in a straight line covers half the distance with speed of . The other half of the distance is covered in two equal time interval with speed of and respectively. The average speed of the particle during this motion is 

View solution
>

Joseph Jogs from one end  to the other end  of a straight  road in  minutes  seconds and then turns around and jogs  back to point  in another  minute. What are Joseph's average speeds and velocities in jogging (a) from  to  and (b) from  to ?

View solution
>

A motorcyclist drives from A to B with a uniform speed of and returns with a speed of . Find the average speed.

View solution
>