A projectile is shot from the ground at a velocity of #47 m/s# and at an angle of #(pi)/2#. How long will it take for the projectile to land?
2 Answers
The time is
Explanation:
Resolving in the vertical direction
initial velocity is
Acceleration is
At the maximum height,
We apply the equation of motion
to calculate the time to reach the greatest height
The time for the projectile to land is
Explanation:
If you carefully look into the question:
#pi/2=180/2=90^circ#
So, To solve, we use
#color(blue)(v=u+at#
Where,
#color(orange)(v="Final velocity"=0#
#color(orange)(u="Initial velocity"=47 m/s#
#color(orange)(a="Acceleration"=-9.8# (As, gravity pulls down)
#color(orange)(t="Time"# (We need to find it)
Let's solve for
Now we have found the time for the projectile to reach its maximum height
So,
Hope this helps.. :)