1 m s−1 =______ kmph.
3.4
3.6
3.8
4
1 km h−1 = 1 km1 h = 1000 m3600 s = 5 m18 s
= 13.6 m s−1
This can also be written as :
1 m s−1 =3.6 km h−1
3 kg + 4 g = _____ g
Two objects of equal masses having the velocities 1 ms and 2ms respectively. Find out the ratio of their kinetic energies.
Number of joules in 1 kWh is