Advertisements
Advertisements
Question
What are the uses of equations of motion?
Advertisements
Solution
Four variables are present in each equation of motion and if any of three is known to us then fourth can be easily find with the help of these equation of motion.
APPEARS IN
RELATED QUESTIONS
Arrange the following speed in increasing order (keeping the least speed first):
A bicycle moving with a speed of 200 m/min.
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How far does it travel in 6 seconds ?
Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.
A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s) : 0 2 4 6 8 10
Speed (m/s) : 4 8 12 16 20 24
Draw the speed-time graph by choosing a convenient scale. From this graph :

(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.
Which of the following can sometimes be 'zero' for a moving body?
(i) average velocity
(ii) distance travelled
(iii) average speed
(iv) displacement
Express 15 m s-1 in km h-1.
Arrange the following speeds in increasing order.
10 m s-1, 1 km min-1 and 18 km h-1.
For the motion with uniform velocity , how is the distance travelled related to the time ?
Figure shows the displacement of a body at different times .
Calculate the velocity of the body as it moves for time interval :
(i) 0 to 5 s,
(ii) 5 s to 7 s
(iii) 7 s to 9 s.

Define variable velocity and give one example.
