Advertisements
Advertisements
प्रश्न
The speed of a moving object is determined to be 0.06 m/s. This speed is equal to :
पर्याय
2.16 km/h
1.08 km/h
0.216 km/h
0.0216 km/h
Advertisements
उत्तर
0.216 km/h
We can convert 0.06 m/s as :
= `"0.06 (3600)"/1000` km/hr
= 0.216 km/hr
So , the answer is 0.216 km/h.
APPEARS IN
संबंधित प्रश्न
What name is given to the speed in a specified direction ?
State whether speed is a scalar or a vector quantity. Give reason for your choice.
If a bus travelling at 20 m/s is subjected to a steady deceleration of 5 m/s2, how long will it take to come to rest ?
One of the following is not a vector quantity. This one is :
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.
A car is moving in a straight line with speed 18 km h-1. It is stopped in 5 s by applying the brakes. Find:
- the speed of car in m s-1
- the retardation and
- the speed of car after 2 s of applying the brakes.
For the motion with uniform velocity , how is the distance travelled related to the time ?
The velocity-time graph of a moving body is given below in Figure
The acceleration in parts AB, BC and CD.
A speeding car changes its velocity from 108 kmh−1 to 36 kmh−1 in 4 s. Calculate its deceleration in
- ms−2
- kmh−2.
What are the uses of equations of motion?
