Question

Jyoti is driving her car with a certain uniform velocity. She press the accelerator for 10 sec and increases its velocity such that it become double the initial value. The car can produce a maximum acceleration of 2m/s.what is the initial velocity of the car.

Answer 1

v = u + at
2u = u + 2×10

Answer 2

Acceleration = a = 2m/s²

time = 10 s

initial velocity = u = ?

final velocity = 2u

a = (v-u)/t

a = (2u-u)/t

at = u

2×10 = u

20 m/s

so initial volocity of the car is 20m/s


// unit of the acceleration is m/s² not m/s correct it //