A car of mass 1000 kg moves on horizontal road with velocity of 30 m/s. When driver applies brake, constant retarding force of 40 kN is applied, retardation of car will b e .....

A car of mass 1000 kg moves on horizontal road with velocity of 30 m/s

1.	A car of mass 1000 kg moves on horizontal road with velocity of 30 m/s. When driver applies brake, constant retarding force of 40 kN is applied, retardation of car will b e .....
Answer» 2 `m//s^(2)` `-2 m//s^(2)` 4 `m//s^(2)` `-4m//s^(2)` SOLUTION : `F= 40 kN = 40xx 10^(3) N` DUETO retardatin therewill benegativesign `a= -4 m//s`