A car start from rest and acquireven a velocity of 54 km/h in 2 sec find the 1.aceleration
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Given,
initial velocity (u)= 0 {as car star form rest}
final velocity (v)= 54km/h = 54*5/18= 15m/sec
time (t) = 2sec
Using first euqation of motion;
v= u + at (where a is acceleration of car)
15 = 0 + a×2
2a= 15
a= 7.5 m/sec²
Hence,
Acceleration of car is 7.5m/sec².
initial velocity (u)= 0 {as car star form rest}
final velocity (v)= 54km/h = 54*5/18= 15m/sec
time (t) = 2sec
Using first euqation of motion;
v= u + at (where a is acceleration of car)
15 = 0 + a×2
2a= 15
a= 7.5 m/sec²
Hence,
Acceleration of car is 7.5m/sec².
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