The application of “impulse of force acts on the driver for longer time when accident occurs”.
A) Breaks of the vehicles
B) Air bags inside the vehicles
C) Breaking of the glass windows
D) Power stearing of the vehicle
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A force of 6 N acts on a body of mass 1 kg initially at rest and during this time, the body attains a velocity of 30 m/s.
Correct option is:(D) 5 second \(F = \frac{dp}{dt}\) \(6 = \frac{mv}{dt}\) \(6 = \frac{1 \times 30}{dt}\) \(\Delta t = \frac{30}{6}\) \(\Delta t = 5 sec\)
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A force of 6 N acts on a body of mass 1 kg initially at rest and during this time, the body attains a velocity of 30 m/s.
2 Answers
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At the time of fire accident make a phone call to ………. number
At the time of fire accident make a phone call to 101 number
2 Answers 1 views
What should not be done at the time of fire accident?
D) Hide under a bed
2 Answers 1 views
Principle involved in the parachutes A) Longer time to hit the land-low impulse
A) Longer time to hit the land-low impulse
2 Answers 1 views
NewtonSec is the unit for A) Momentum B) Inertia C) Impulse D) Force
Correct option is C) Impulse
2 Answers 1 views
Two people push a car for 2s with a combined net force of 250 N. The impulse providedjo the car is
Correct option is A) 500 NS
2 Answers 1 views
Conduction of nerve impulse occurs at a faster rate in medullated nerve fibre.
1. Medullated nerve fibres have myelin sheath around the axon. This myelin sheath is secreted by Schwann cells. 2. Myelin sheath prevents the loss of the impulse during conduction. 3. Myelin sheath...
2 Answers 1 views
Pressure = ………… A) Force B) Force x area C) Area / force D) Force / area
D) Force / area
2 Answers 1 views
Statement -1 : A potentiometer of longer length is used for accurate measurement Statement -2 : The potential gradient for a potentiometer of longer l
Correct Answer - a Here both the statement - 1 and statement - 2 are correct
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