help@askiitians.com

1800-150-456-789

9 grade science> If a football kicked from the ground move...

question mark

If a football kicked from the ground moves with a velocity of 20 MS-1.making 30 degree with the horizontal, find its vertical displacement and horizontal displacement after one second

Baskaran , 6 Years ago

Grade 8

1 Answers

Eshan

Last Activity: 6 Years ago

Dear student,

Component of velocity along horizontal= $u_x=ucos30^{\circ}=10\sqrt{3}m/s$
Component of velocity along vertical= $u_y=usin30^{\circ}=10m/s$

Hence horizontal displacement in 1 second= $s_x=u_xt=10\sqrt{3}m$
Vertical displacement in 1 second= $s_y=u_yt-\dfrac{1}{2}gt^2=(10)(1)-5(1^2)=5m$

Provide a better Answer & Earn Cool Goodies

Enter text here...

LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

Full Live Access

Study Material

Live Doubts Solving

Daily Class Assignments

Ask a Doubt

Get your questions answered by the expert for free

Enter text here...

a car travels half distance with the speed of 20m/s and next half distance travel with 30 m/s , the average speed of the car is

9 grade science

1 Answer Available

Last Activity: 2 Years ago

A hockey ball of mass 200g travelling from west to east at 10m//s is struck by a hockey stick. As a result, the ball gets turned back and now has a speed of 5m//s. If the ball and hockey stick were in contact for 0.2s, Calculate (i) initial and final momentum of the ball (ii) rate of change of momentum of the balll (iii) force exerted by hockey stick on the ball.

9 grade science

1 Answer Available

Last Activity: 2 Years ago

Which step is not involved in the carbon-cycle ?

9 grade science

1 Answer Available

Last Activity: 2 Years ago

Draw a neat labelled diagram of a vernier callipers.

9 grade science

1 Answer Available

Last Activity: 2 Years ago

Why are lead compounds are added to petrol? How is it harmful?

9 grade science

1 Answer Available

Last Activity: 2 Years ago

View all Questions