" the initial speed of the car? "

The graph given alongside shows how the speed of a car changes with time : (i) What is the initial speed of the car ? ltBrgt (ii) What is the maximum speed attained by the car ? ltBrgt (iii) Which part of the graph shows zero acceleration ? ltBrgt (iv) Which part of the graph shows varying retardation ? (v) Find the distance travelled in first 8 hours.

Four railroad cars, each of mass 2.50 xx 10^4 kg, are coupled together and coasting along horizontal tracks at speed v_(I) towards the south. A very strong movie actor, riding on the second car, uncouples the front car and gives it a big push, increasing its speed to 4.00 m//s southward. The remaining three cars continue moving south, now at 2.00 m//s . (a) Find the initial speed of the cars. (b) How much work did the actor do?

Four railroad cars, each of mass 2.50 xx 10^4 kg, are coupled together and coasting along horizontal tracks at speed v_(I) towards the south. A very strong movie actor, riding on the second car, uncouples the front car and gives it a big push, increasing its speed to 4.00 m//s southward. The remaining three cars continue moving south, now at 2.00 m//s . (a) Find the initial speed of the cars. (b) How much work did the actor do?

The graph below shows how the speed car changes with time: What is the initial speed of car?

Initially a car is moving with speed of 20 ms^(-1) and covers a distance of 100 m before it comes to rest. On making the initial speed of car 40 ms^(-1) keeping the acceleration same, the distance travelled by car before it comes to rest is

Initially a car is moving with speed of 20 ms^(-1) and covers a distance of 100 m before it comes to rest. On making the initial speed of car 40 ms^(-1) keeping the acceleration same, the distance travelled by car before it comes to rest is

The speed of a car is 85 km/hr. It is increased by 20%. Find the increased speed of the car ?

A gun in mounted on a railroad car. Themass of the car with all of its components is 80 m mass of each shell to be fired is 5m. The muzzle velocity of the shells is 100m/s horizontally, what is the recoil speed of the car after seconds shot? Consider car to be at rest initially.