a car of mass 1200kg including his weight with speed 30 m/s he observe a child at 300m his reaction t=3sec . If he applies the break for 5 sec, will the accident playes breaking force is 200N
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Distance travelled in 3s = ut = 30 * 3 = 90m
a = F/m
a = 200/1200
a = 1/6 m/s^2
S = u^2 / (2a)
S = (30)^2 / (2 * 1/6)
S = 2700 m
Total distance travelled before it stops = 90m + 2700 = 2790m
2790m > 300m
Hence accident takes place.
a = F/m
a = 200/1200
a = 1/6 m/s^2
S = u^2 / (2a)
S = (30)^2 / (2 * 1/6)
S = 2700 m
Total distance travelled before it stops = 90m + 2700 = 2790m
2790m > 300m
Hence accident takes place.
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