Advertisements
Advertisements
प्रश्न
An unloaded truck weighing 2000 kg has a maximum acceleration of 0.5 m/s2. What is the maximum acceleration when it is carrying a load of 2000 kg ?
Advertisements
उत्तर
Force of unloaded truck:
m = 2000 kg
a = 0.5 m/s2
Force = mass × acceleration
= 0.5 × 2000
= 1000 N
Force of loaded truck:
We have to find maximum acceleration,
M = [2000+2000]
Force = mass × acceleration
⇒ 1000 = a × 4000
⇒ `1000/4000 = a`
⇒ a = 0.25
The maximum acceleration when it is carrying a load of 2000 kg is 0.25 m/s2.
APPEARS IN
संबंधित प्रश्न
From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m s−1. Calculate the initial recoil velocity of the rifle.
What is the total momentum of the bullet and the gun before firing ?
What is the change in momentum of a car weighing 1500 kg when its speed increases from 36 km/h to 72 km/h uniformly ?
Which physical principle is involved in the working of a jet aeroplane ?
Name the principle on which a rocket works.
A 10 g bullet travelling at 200 m/s strikes and remains embedded in a 2 kg target which is originally at rest but free to move. At what speed does the target move off ?
Explain why, a cricket player moves his hands backwards while catching a fast cricket ball.
A 150 g ball, travelling at 30 m/s, strikes the palm of a player’s hand and is stopped in 0.05 second. Find the force exerted by the ball on the hand.
A boy of mass 50 kg running at 5 m/s jumps on to a 20 kg trolley travelling in the same direction at 1.5 m/s. What is their common velocity ?
Two blocks P and Q of masses 0.3 kg and 0.4 kg, respectively, are stuck to each other by some weak glue as shown in the figure. They hang together at the end of a spring with a spring constant of k = 200 N/m. The block Q suddenly falls free due to the failure of glue, then the maximum kinetic energy of block P during subsequent motion will be ______ mJ.
