4-ali is pushing his car(1000kg)with a uniform accileration of a 0.5m/s2 by applying force f at an angle 20 with the horecontal if the coefficient of kinetic friction berween tyre and road is 0.65 the magnitude of f is
snswer(9576n
5-a car takes4min to coplete 6 turns around 25m radius road .the speed of the car is
60km/hr-34km/hr-14km/hr-10km/hr answer(14km/hr)
6-