If a projectile is shot at an angle of #pi/2# and at a velocity of #34 m/s#, when will it reach its maximum height??
The upward motion of the projectile will be due to its vertical component of velocity,now initially during the projection,its vertical component of velocity was
So,if it reaches its maximum height at time
so,we can use,
so, here we can write,
Well look carefully here the projectile was thrown directly upwards,i.e it had no horizontal displacement,as its horizontal component of velocity was