Question

r

mv

(d)

2

2

mv

r

2. If the unit of force and length each be increased

by four times, then the unit of energy is increased

by​

Answer 1

Answer:

Unit of Energy = kg. m2/ s2

Unit of Force = kg. m/s2

Unit of Length = m

Thus, unit of energy in terms of unit of force and length is given by

Unit of Energy = (kg. m/s2) x (m)

If the units of length and force are increased by four times,

the unit of energy will be:

Unit of Energy = (4 .kg. m/s2) x (4m)

Unit of Energy = 16 (kg. m2/ s2)

Therefore, if the units of length and force are increased by four times,

the unit of energy will change by 16 times.