From the top of a tower of height 40 m a ball is projected upwards with a speed of 20 m/s…
Physics · JEE Advanced · NTA Exams — Kinematics
From the top of a tower of height 40 m a ball is projected upwards with a speed of 20 m/s at an angle of elevation of 30o. Then the ratio of the total time taken by the ball to hit the ground to its time of flight (time taken to come back to the same elevation) is (take g = 10 ms2)
- 2:1
- 3:1
- 3:2
- 4:1
Answer
(A) 2:1
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- A person standing near the edge of the top of a building throws two balls A and B. The ball A is thrown…
- A body is projected horizontally with speed 20 m/s from top of a tower, what will be the displacement of the…
- Four particles are moving along X–axis. Their coordinates (in metres) as function of time (in seconds) are…
- A stone tied to a string of length L is whirled in a vertical circle with the other end of the string at the…
- The displacement (x) of a particle depends on time (t) as x= t^ 2 - t^ 3
- In 1.0 s, a particle goes from point A to point B , moving in a semicircle of radius 1.0 m as shown in the…
- If the vectors a , b and or the sides BC , CA and AB respectively of a triangle ABC , then
- Two small particles of equal masses start moving in opposite directions from a point A in a horizontal…