Home
Class 12
PHYSICS
The six hit by CHRIS GAYLE in IPL just m...

The six hit by CHRIS GAYLE in IPL just misses a building of length 80m as shown in figure. The angle of projection with horizontal is :-

A

`45^(@)`

B

`30^(@)`

C

`60^(@)`

D

`15^(@)`

Text Solution

Verified by Experts

The correct Answer is:
A

`u_(x)=(80)/(2)=40m//s`
`(2u_(y))/(g)=5+3rArru_(y)=40m//s`
`therefore theta=45^(@)`
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    ALLEN|Exercise PAPER 2|60 Videos
  • TEST PAPERS

    ALLEN|Exercise PAPER 3|99 Videos
  • TEST PAPER 4

    ALLEN|Exercise PHYSICS|44 Videos
  • UNIT & DIMENSIONS, BASIC MATHS AND VECTOR

    ALLEN|Exercise Exercise (J-A)|7 Videos

Similar Questions

Explore conceptually related problems

A ball is projected with a speed of 2ms^(-1) with respect to a trolley which is moving with 4ms^(-1) , as shown in the figure. The angle at which ball is projected with respect to the horizontal in ground frame is

Two particles are projected simultaneously from two points O and O' such that 10 m is the horizontal and 5 m is the vertical distance between them as shown in the figure. They are projected at the same inclination 60^@ to the horizontal with the same velocit 10 ms^(-1) . The time after which their separation becomes minimum is

A body is projected up a smooth inclined plane with velocity V from the point A as shown in the figure. The angle of inclination is 45^(@) and the top is connected to a well of diameter 40m. If the body just manages to across the well, what is the value of V? Length of inclined plane is 20sqrt(2)m .

A simple pendulum consisting of a mass M attached to a string of length L is released from rest at an angle alpha . A pin is located at a distance l below the pivot point. When the pendulum swings down, the string hits the pin as shown in figure. The maximum angle theta which the string makes with the vertical after hitting the pin is

Average torque on a projectile of mass m (initial speed u and angle of projection theta ) between initial and final positions P and Q as shown in figure, about the point of projection is : .

As shown in the figure a body of mass m moving vertically with speed 3 m/s hits a smooth fixed inclined plane and rebounds with a velocity v_(f) in the horizontal direction . If angle of plane with horizontal is 30^(@) , the velocity v_(f) will be

Protons are projected with an initial speed v_i = 9.55 xx 10^3 m//s into a region where a uniform electric field E = (-720hat j ) N/C is present, as shown in figure. The protons are to hit a target that lies at a horizontal distance of 1.27 mm from the point where the protons are launched. Find (a) the two projection angles 0 that result in a hit and (b) the total time of flight for each trajectory.

A particles is projected horizontally with a speed v from the top of a plane inclined at an angle tehta to the horizontal as shown in the figure. (a) Hwo far from the point of projection will the particle strike the plane ? (b) Find the time taken by the particel to hit the plane. (c) What is the velocity of particle just before it hits the plane ?

Three identical balls are thrown from the top of a building, all with the same initial speed. As shown in figure., the first ball is thrown horizontally, second above horizontal level, and third at an angle below the horizontal. Neglecting air resistance, rank the speeds of the balls at the instant each hits the ground.

A particle is projected in air at some angle to the horizontal, moves along parabola as shown in figure where x and y indicate horizontal and vertical directions, respectively . Shown in the diagram, direction of velocity and acceleration at points A, B and C.