A body is projected upwards with a velocity u

Asked by admin @ 17/08/2021 in Physics viewed by 331 People

A body is projected upward with velocity u.it passes through certain point above ground at t1.- the time after which the body passes through the same point during the return journey is

Answered by admin @ 17/08/2021

Let the starting point be A, point crossed by the ball be B and final point from where the ball returns be C.
For AC, v=0, u=u, and total time= t
0= u-gt
Or t= u/g ---eq.1
Now from A to B, time = t1 & from B to C, t= t2.
t = t1+t2 or t2 = t - t1.
But the ball comes back to the point B from C,
Implies that t2= 2(t- t1)
= 2(u/g - t1) is the final answer.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Asked by maham237 @ 13/01/2021 in Physics viewed by 1198 persons

Mind map for light reflection and refraction class 10

Asked by admin @ 23/08/2021 in Physics viewed by 1137 persons

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

Asked by maham237 @ 10/01/2021 in Physics viewed by 1091 persons

A thief runs at a speed of 10m s

Asked by admin @ 23/08/2021 in Physics viewed by 1088 persons

A 5.8 x 10 4 watt elevator motor can lift

Asked by maham237 @ 20/06/2021 in Physics viewed by 1075 persons

A body is projected upwards with a velocity u

Similar Questions

Velocity time graph for a body projected vertically upwards

A ball is thrown vertically upward with velocity u

Two bodies are projected with the same velocity

Four bodies are projected with the same velocity

A body is projected up with a speed u

Velocity time graph of a body thrown vertically upwards

The initial velocity of a particle is u

A bullet of mass m moving with velocity u

A projectile is fired horizontally with a velocity u

A particle of mass m moving with velocity u

A ball is thrown vertically upward with speed u

A balloon is going upwards with velocity 12m s

When the velocity of a body is doubled its

A body is projected along a rough horizontal surface

A body is projected horizontally with a speed v0

Most viewed questions in Physics

Jeevandeep health and physical education std 10 answers pdf

Hc verma physics class 9 solutions of describing motion

How to leave nightmare land answer key

Base area and stability of some objects with different shapes

Which of the following statements about safe lifting are correct

Porous water-absorbing mass of fibers

Absorption of water by filter paper is due to

A composite wire of uniform diameter 3mm

At a distance l 400m from the traffic light

A rocket of mass m is launched straight up with thrust f⃗ thrust.

A hair dryer with a resistance of 9.6 ohms operates at 120 volts for 2.5 minutes. the total electrical energy used by the dryer during this time interval is

Mind map for light reflection and refraction class 10

The african cicada is the world's loudest insect, producing a sound intensity level of 107 db at a distance of 0.50 m. what is the intensity of its sound (in w/m2) as heard by someone standing 3.1 m away? express your answer in watts per meter squared.

A thief runs at a speed of 10m s

A 5.8 x 10 4 watt elevator motor can lift