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What do you mean by an impulsive force?

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प्रश्न

What do you mean by an impulsive force?

एक पंक्ति में उत्तर
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उत्तर

The force that acts on a body for a very short time but produces a large change in its momentum, is known as impulsive force.

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अध्याय 3: Laws of Motion - Exercise 3 [पृष्ठ १३०]

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फ्रैंक Physics Part 1 [English] Class 9 ICSE
अध्याय 3 Laws of Motion
Exercise 3 | Q 50 | पृष्ठ १३०

संबंधित प्रश्न

A body of mass 0.40 kg moving initially with a constant speed of 10 m s–1 to the north is subject to a constant force of 8.0 N directed towards the south for 30 s. Take the instant the force is applied to be t = 0, the position of the body at that time to be x = 0, and predict its position at t = –5 s, 25 s, 100 s.


A helicopter of mass 1000 kg rises with a vertical acceleration of 15 m s–2. The crew and the passengers weigh 300 kg. Give the magnitude and direction of the

(a) force on the floor by the crew and passengers,

(b) action of the rotor of the helicopter on the surrounding air,

(c) force on the helicopter due to the surrounding air.


 car moving at 40 km/hr is to be stopped by applying brakes in the next 4 m. If the car weighs 2000 kg, what average force must be applied to stop it?


Find the reading of the spring balance shown in the following figure. The elevator is going up with an acceleration g/10, the pulley and the string are light and the pulley is smooth.


Let m1 = 1 kg, m2 = 2 kg and m3 = 3 kg in the following figure. Find the accelerations of m1, m2 and m3. The string from the upper pulley to m1 is 20 cm when the system is released from rest. How long will it take before m1 strikes the pulley?


A monkey of mass 15 kg is climbing a rope fixed to a ceiling. If it wishes to go up with an acceleration of 1 m/s2, how much force should it apply on the rope? If the rope is 5 m long and the monkey starts from rest, how much time will it take to reach the ceiling?


The monkey B, shown in the following figure, is holding on to the tail of monkey A that is climbing up a rope. The masses of monkeys A and B are 5 kg and 2 kg, respectively. If A can tolerate a tension of 30 N in its tail, what force should it apply on the rope in order to carry monkey B with it? Take g = 10 m/s2.


Write the mathematical form of Newton's second law of motion. State the conditions if any.


A ball is thrown vertically downward with an initial velocity of 10 m/s. What is its speed 1 s later and 2 s later?


The INCORRECT statement about Newton's second law of motion is


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