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ICSE Class 10 Answered

A car of mass 800 kg moving with a velocity of 30 m per second along a horizontal Road id brought to rest by a constant force of 5000 Newton calculate the distance moved by the car before coming to rest
Asked by Samrat | 29 Jun, 2018, 10:16: PM
answered-by-expert Expert Answer
retardation produced by the applied force = Force/mass = 5000 / 800 = 6.25 m/s2
 
Distance S moved is calculated using the formula " v2 = u2 - 2×a×S " , with final speed v =0, initial speed u = 30 m/s.
 
S = (30×30)/(2×6.25) = 72 m
Answered by Thiyagarajan K | 30 Jun, 2018, 04:19: PM

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