Advertisements
Advertisements
प्रश्न
Name the physical entity used for quantifying the motion of a body.
Advertisements
उत्तर
Momentum is used for quantifying the motion of body.
APPEARS IN
संबंधित प्रश्न
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?
In a TV picture tube, electrons are ejected from the cathode with negligible speed and they attain a velocity of 5 × 106 m/s in travelling one centimetre. Assuming straight-line motion, find the constant force exerted on the electrons. The mass of an electron is 9.1 × 10−31 kg.
In a simple Atwood machine, two unequal masses m1 and m2 are connected by a string going over a clamped light smooth pulley. In a typical arrangement (In the following figure), m1 = 300 g and m2 = 600 g. The system is released from rest. (a) Find the distance travelled by the first block in the first two seconds; (b) find the tension in the string; (c) find the force exerted by the clamp on the pulley.
State the Newton's second law of motion. What information do you get from it?
A force acts for 10 s on a stationary body of mass 100 kg, after which the force ceases to act. The body moves through a distance of 100 m in the next 5 s. Calculate: The velocity acquired by the body.
What causes motion in a body?
Why is it advantageous to turn before taking a long jump?
State Newton's second law of motion. Is Newton's first law of motion contained in Newton's second law of motion?
Why is catching a slow-moving ball easier than catching a fast-moving ball?
How does moving your hand backward while catching a cricket ball reduce pain?
