A boat capable of maximum speed `10 m/s` in still water, can have an acceleration of `5 m/s^2`. What is the minimum time, the boat can take to reach a distance of `20 m`, starting from rest?

A racing car has a uniform acceleration of 4 m//s^(2) . What distance will it cover in 10 s after start ?

A swimmer can swim in still water with a speed of 2.5 m/s. What is the shortest time taken by him to swim across the river?

A small electric car has a maximum constant acceleration of 1m//s^(2) , a maximum constant deceleration of 2m//s^(2) and a maximum speed of 20m//s . The amount of minimum time it would take to drive this car 1km starting from rest is (13n) second. Find value of n

A car is to be hoisted by elevator to the fourth floor of a parking garage, which is 14 m above the ground. If the elevator can have maximum acceleration of 0.2 m//s^2 and maximum deceleration of 0.1 m//s^2 and can reach a maximum speed of 2.5 m//s, determine the shortest time to make the lift, starting from rest and ending at rest.

A boat man can row with a speed of 10 km/hr. in still water. The river flow steadily at 5 km/hr. and the width of the river is 2 km. if the boat man cross the river with reference to minimum distance of approach then time elapsed in rowing the boat will be:-

A body starting from rest has an acceleration of 5m//s^(2) . Calculate the distance travelled by it in 4^(th) second.

Velocity of boat in still water is 13 m/s. If water flows ina river with a velocity of 5 m/s. What is the difference in times taken by him to cross the river in the shortest path and in the shortest time. If the width of the river is 10 m.

The maximum acceleration that can be produced by the engine of a vehicle is 5ms^(-2) and the maximum retardation is brake can produce is 10ms^(-2) . Then the minimum time during which it can cover a distance of 60 m is

If a boat can have a speed of 4 km/hr in still water, for what values of speed of river flow, it can be managed to row boat right across the river, without any drift ?