Advertisements
Advertisements
Question
A quantity is measured to be -30 m/s. Is it speed or velocity?
Advertisements
Solution
-30 m/s is speed.
APPEARS IN
RELATED QUESTIONS
Suppose the two photographs, shown in Figure 1 and Figure 2, had been taken at an interval of 10 seconds. If a distance of 100 metres is shown by 1 cm in these photographs, calculate the speed of the fastest car.

Figure 1 Vehicles moving in the same direction on a road

Figure 2 Position of vehicles shown in Figure 1 after some time
Which is greater?
(i) 60 km/hr
(ii) 15 m/s
For a body moving along a circular path, show that:
Linear speed = Angular velocity X radius of the circle
A vehicle covers a distance of 400km in 5 hours. Calculate its speed.
Compare speed and velocity
A ______ is the fastest land animal.
Define speed Mention its formula and unit.
Paheli and Boojho have to cover different distances to reach their school but they take the same time to reach the school. What can you say about their speed?
A spaceship travels 36,000 km in one hour. Express its speed in km/s.
Distinguish between Speed and velocity.
