a car is retarted by applying brakes at the rest of 2ms-2. it is finally stopped in 10 s. find its initial velocity
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The Initial velocity u=20m/sec
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3
a = -2 m/s²
v = 0
t = 10s
u = ?
v = u + at
⇒ 0 = u + (-2)*10
⇒ 0 = u -20
⇒ u = 20 m/s
v = 0
t = 10s
u = ?
v = u + at
⇒ 0 = u + (-2)*10
⇒ 0 = u -20
⇒ u = 20 m/s
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