Homework Help: physics

Posted by Anonymous on Friday, October 12, 2012 at 2:40pm.

A particle is projected from ground in a vetical direction at t=0 sec. at t=0.8 s, it reaches h=14m .It will again come to the same height at ?

physics - Elena, Friday, October 12, 2012 at 2:58pm
h= v₀•t-g•t²/2 ,
v₀=h/t +gt/2 = 14/0.8 +9.8•0.8/2 = 21.42 m/s.
Time of the motion to the highest point
t₀=v₀/g =21.42/9.8=2.19 s.
t1=2•2.19 – 0.8=3.58 s.

Answer this Question

Related Questions

Physics - A particle is projected vertically upwards from ground level with an ...
physics help - The magnitude of the velocity of a particle which starts from ...
physics help - The magnitude of the velocity of a particle which starts from ...
physics - A particle, starting from point A in the drawing at a height h0 = 3.2 ...
physics - A particle, starting from point A in the drawing at a height h0 = 3.2 ...
physics - A particle, starting from point A in the drawing at a height h0 = 3.1 ...
Physics - A particle, starting from point A in the drawing at a height h0 = 2.3 ...
maths - Find the speed and direction of a particle which, when projected from a...
math - could you please help with this question :) Find the speed and direction ...
Math - Hi, could you please help with this question :) Find the speed and ...

For Further Reading

First Name:
School Subject:
Answer: