one day Rahul decided to go is office by his car he is enjoying the driving along with listening the
old songs his car is moving along a straight road at a steady speed on a particular moment he
notices that the car travels 150 m in 5 seconds.
i) What is its average speed?
a)20m/s b)30m/s c)10 m/s d)40m/s
ii) how far does it travel in one second?
a)20m b)30m c) 10m d) 40m
iii) how far does it travel in 6 seconds?
a)120m b)130m c)180m d)140m
iv) how long does it take to travel 240 m?
a. 2s b) 4s c) 6s d)8s
v) which of the following statement is correct regarding velocity and speed of a moving body?
a) velocity of a moving body is always higher than its speed
b) speed of a moving body is always higher than its velocity
c) speed of a moving body is its velocity in a given direction
d) velocity of a moving body is its speed in a given direction.
Answers
Average Speed - 30m/s
Distance Travelled in 1s - 30m
Distance Travelled in 6s - 180m
Time to travel 240m - 8s
hope it helps you
mark brainliest
Given - Distance = 150 metre
Time = 5 seconds
Find - i) What is its average speed?
ii) how far does it travel in one second?
iii) how far does it travel in 6 seconds?
iv) how long does it take to travel 240 m?
Solution -
i) Average speed = distance/time
Average speed = 150/5
Average speed = 30 metre/second
ii) Distance travelled in 5 second = 150 metre
Distance travelled in 1 second = 150/5
Distance travelled in 1 second = 30 metre
iii) Distance travelled in 6 seconds = average speed*time
Distance travelled in 6 seconds = 30*6
Distance travelled in 6 seconds = 180 metre
iv) Time taken to travel 240 metre = distance/speed
Time taken to travel 240 metre = 240/30
Time taken = 8 seconds.
Answer regarding velocity and speed is -
d) velocity of a moving body is its speed in a given direction.
- Speed is a scalar quantity and hence it has only magnitude but no direction. Velocity is a vector quantity which indicates that it has both magnitude and direction.
- Thus, we can say that velocity is a speed in a particular direction.
- In other words, velocity can also be defined as change in position per unit time.