AP EAMCET201823 Apr 2018Morning ShiftPhysicsMotion in Two DimensionsActual
A body is projected horizontally from the top of a tower of height 180 ~m with a velocity of 20 ~ms ⁻¹ . If acceleration due to gravity is 10 ~ms ⁻² , then match the following. array llll A & B & C & D array
Options
- AIV II III I
- BI II III IV
- CIV II I III
- DII IV I III
Correct answer
C. IV II I III
Step-by-step solution
Given, initial horizontal component of velocity, u_x=20 ~m / s . Initial vertical component of velocity, u_y=0 Acceleration due to gravity, g=a_y=10 ~m / s ^2 So, horizontal component of velocity after 1 ~s , aligned v_x & =u_x+a_x t & =20+0=20 ~m / s aligned and vertical component of velocity after 1 ~s , aligned v_y & =u_y+a_y t & =0+10 1 & =10 ~m / s aligned Horizontal displacement after 1 ~s , aligned s_X & =u_x t+ 1 2 a_X t^2 & =20 1+0=20 ~m aligned Vertical displacement after 1 ~s , aligned s_y & =u_y t+ 1 2