A body is projected up with an initial velocity u m/s. It goes up to a height, ‘h’ metres in seconds time. Then it comes back at the point of projection. Considering negligible air resistance, which of the following statement is true?
A. the acceleration is zero
B. the displacement is zero
C. the average velocity is 2hit
D. the final velocity is 2u when body reaches projection point
Answer:B
A body is projected up with an initial velocity u m/s. It goes up to a height, ‘h’ metres in seconds time. Then it comes back at the point of projection. Considering negligible air resistance, which of the following statement is true?
A. the acceleration is zero B. the displacement is zero C. the average velocity is 2hit D. the final velocity is 2u when body reaches projection point