Advertisements
Advertisements
Question
A car moving on a straight path covers a distance of 1 km due east in 100 s. What is velocity of the car?
Advertisements
Solution
Distance = 1 km = 1000 m
Time = 100 s
Speed = `("distance")/("time")`
= `(1000)/(100)`
= 10 m/s
Velocity of car = Speed with direction = 10 m/s due east
APPEARS IN
RELATED QUESTIONS
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
Arrange the following speed in increasing order (keeping the least speed first):
An athlete running with a speed of 10 m/s.
Write the formula for acceleration. Give the meaning of each symbol which occurs in it.
Write the formula to calculate the speed of a body moving along a circular path. Give the meaning of each symbol which occurs in it.
Give one example of following motion :
Variable velocity
Express 15 m s-1 in km h-1.
A car travels the first 30 km with a uniform speed of 60 km h−1 and the next 30 km with a uniform speed of 40 km h−1. Calculate :
- The total time of journey,
- The average speed of the car.
The velocity-time graph of a moving body is given below in Figure

Displacement in each part AB, BC and CD.
A train travels with a speed of 60 km h-1 from station A to station B and then comes back with a speed 80 km h-1 from station B to station A. Find -
- The average speed
- The average velocity of the train.
Define average velocity and give one example.
