It’s ok to be Original in JEE Prep - Saurabh Maurya #shorts

Amplitude of a swing decreases to 0.5 times its original magnitude in 4s due to damping by air friction. Its amplitude becomes how many times of the original magnitude in another 8s?

Directrix of a parabola is x + y = 2. If it’s focus is origin, then latus rectum of the parabola is equal to

The operating voltage in an -X-ray tube is increased to 3 times the original value of when the short wavelength limits shifs by 25 nm. Find the original value or the opreating voltage.

A cricket ball of mass 160g is moving horizontally directly towards a batsman. Its speed just before it hits the bat is 30m//s . It leaves the bat at 40 m//s at 90^(@) to its original direction. Find the magnitude of the impulse (in N - s) imparted to the ball.

A body starts from rest from the origin with an acceleration of 3 m//s(2) along the x-axis and 4 m//s^(2) along the y-axis. Its distance from the origin after 2 s will be

A body starts from rest from the origin with an acceleration of 6m//s^(2) along the x-axis and 8m//s^(2) along the y-axis. Its distance from the origin after 4 seconds will be

An object starts at the origin in a straight line. Its velocity versus time graph is shown in the figure. Which one of the following choices best gives the proper intervals (s) of time for which the object is moving away from the origin?

A ball of mass 2 kg moving with 4 m/s collides elastically with a stationary ball. If it continues to move in original direction with 1/4th of its original velocity. Find velocity of centre of mass of system

The amplitude of a damped oscillation decreases to 0.8 times its original magnitude in 4s. In another 12s, it will decrease to n time its original magnitude. Find the value of n.