A car is moving with a velocity of `20 m//sec`. The driver sees a stationary truck at a distance of `100 m` ahead. After some reaction time `Deltat`. He applies the brakes, producing a retardation of `4 m//s^(2)`. The maximum reaction time to avoid collision.

A car is moving with a velocity of 20 m/s. The driver sees a stationary truck ahead at a distance of 100 m. After some reaction time Deltat the brakes are applied producing a retardation of 4 m//s^2 ? What is the maximum reaction time to avoid collision ?

A car is moving with a velocity of 20 m/s. The driver sees a stationary truck ahead at a distance of 100 m. After some reaction time Deltat the brakes are applied producing a retardation of 4 m//s^2 ? What is the maximum reaction time to avoid collision ?

A car is moving with a velocity of 20 m/s .The driver sees a stationary truck ahead at a distance of 100.After some reaction time Deltat the brakes are applied producing a retardation of 4m//s^(2) .What is the maximum reaction time to avoid collision?

A car is moving wth a velocity of 40 m//s the driver sees a stationary truck a head at a distance of 200 m. After some reaction time Delta t the breaks are applied producing a (reaction) retardation of 8 m//s^(2) . What is the maximum reaction time to avoid collision ?

A car is moving with speed 20 m//s . Suddenly the driver sees the sign of danger at a distance of 50 m , after a certain reaction time t_(0) , he applies breaks to cause deceleration 5 m//s^(2) . What is the maximum allowable reaction time t_(0) to avoid accident and distance traveled by the car during reaction time?

A car is moving with a velocity V. The car driver sees a truck at rest at a distance s. To avoid collision which is better, to apply brake or to turn sharply ?

A car is moving with a velocity 20 "m s"^(-1) . The brakes are applied to retard it at a rate of 2 "m s"^2 . What will be the velocity after 5 s of applying the brakes?