Let `v = 54 km h^(-1) = n_(2) m s^(-1)`. `[v] = LT^(-1) , a = 0 , b = 1, c = -1` `n_(2) = 54 [(kg)/(g) ]^(0) [ ( km)/(m)]^(1) [(h) /( s)]^(-1)` `= 54 xx 1 xx 1000 xx [ 3600 ]^(-1) = ( 54 xx 1000)/( 3600) = 15 ` Hence , `54 km h ^(-1) = 15 m s^(-1)`.
Two trains 121 m and 99 m in length are running in opposite directions with velocities 40 km h^(-1) and 32 km h^(-1) . In what time they will completely cross each other?
Convert (i) 1 kgm^(2)s^(2) into gcm^(2)s^(-2) and (ii) 1 m into light year
A truck eighine 1000 kg changes its speed from 36 km h^(-1) to 72 km h^(-1) in 2 minutes. Calculate (i) the work done by the engine, and in its power (g 10 m s^(-2))
Convert 56 km/h to m/s.
What is the work to be done to increase the velocity of a car from 30 km h^(-1) to 60 km h^(-1) if the mass of the car is 1500 kg ?
The speed of a car is 72 km h^(-1) . Express it in m s^(1)
