NCERT Solutions for Class 11 Science Work energy and power 4
Important Board Questions
Work energy and power
NCERT Books for Session 2022-2023
CBSE Board and UP Board
2 Marks Questions
A truck and a car moving with the same K.E. on a straight road. Their engines are simultaneously switched off which one will stop at a lesser distance?
Share
By Work – Energy Theorem,
Loss in K.E. = W.D. against the force × distance of friction
or K.E. = μ mg S
For constant K.E., S ∝ 1/m
∴ Truck will stop in a lesser distance.