A toy car of mass 500g travels with a uniform velocity of 25 cm/s2 for 5 s . The brakes are then applied and the car is uniformly retarded and comes to rest in further 10 s. Calculate: 1. The retardation 2. The distance which the car travels after the brakes are applied 3. The force exerted by the brakes
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1 St answer ) a=(v-u)/t= -25/5= -5cm/s^2
2nd ans) s=(v^2-u^2)/t= (-25×25)/5=62.5cm
3) f=m×a=500×62.5=31250 dye
2nd ans) s=(v^2-u^2)/t= (-25×25)/5=62.5cm
3) f=m×a=500×62.5=31250 dye
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