A small object is dropped from the top of a building and falls to the ground. As it falls, accel...

Channel:
PW Solutions
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=21oH-sXC4T8


Duration: 6:31
6 views
1

A small object is dropped from the top of a building and falls to the ground. As it falls, accelerating due to gravity, it passes window. It has speed \( v_{1} \) at the top of the window and speed \( v_{2} \) at the bottom of the window, at what point does it have a speed \( \frac{v_{1}+v_{2}}{2} \) ? Neglect the air resistance.
(A) It depends on the height of the window or its distance from the top of the building.
(B) Above the centre point of the window
(C) Below the centre point of the window
(D) At the centre point of the window
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-10-27A particle has initial velocity of \( 17 \mathrm{~ms}^{-1} \) towards east and constant accelera...
2022-10-27A person throws balls into the air one after the other at an interval of one second. The next ba...
2022-10-27In the previous question, the height attained by the rocket before deceleration is : (A) \( 1 \m...
2022-10-27In the above question, the acceleration of the rocket is : (A) \( 50 \mathrm{~m} / \mathrm{sec}^...
2022-10-27A ball is thrown vertically upwards from the ground. It crosses a point at the height of \( 25 \...
2022-10-27In the previous question; the mean velocity of the rocket reaching the maximum height is : (A) \...
2022-10-27A rocket is projected vertically upwards and its time velocity graph is shown in the figure-1.11...
2022-10-27The velocity of a particle moving on the \( x \)-axis is given by \( v=x^{2}+x \) where \( v \) ...
2022-10-27A particle moves in a straight line and passes through \( O \), a fixed point on the line, with ...
2022-10-27The following figure-1.114 shows the linear motion velocity-time graph of a body. The body will ...
2022-10-27A small object is dropped from the top of a building and falls to the ground. As it falls, accel...
2022-10-27In the above question, which portion of the curve will have zero acceleration : (A) \( O A \) (B...
2022-10-27The velocity of a car travelling on a straight road is given by the equation \( v=6+8 t-t^{2} \)...
2022-10-27Which of the following sets of displacements might be capahle of returning a car to its starting...
2022-10-27In the above question, the acceleration in the portion \( O A \) of the curve will be : (A) Zero...
2022-10-27A ball is thrown up with a certain velocity at an angle \( \theta \) to the horizontal. The kine...
2022-10-27A ball is projected vertically up with an initial velocity. Which of the following graphs repres...
2022-10-27Two particle are projected simultaneously in the same vertical plane from the same point, with d...
2022-10-27A river is flowing from north to south at a speed of \( 0.3 \mathrm{kph} \). A man on the west b...
2022-10-27The velocity of a particle moving in straight line is given by the graph shown here: Then its ac...
2022-10-27A stone is dropped from a balloon rising with acceleration \( a \). The acceleration of the ston...


Tags:
pw