# A level physics

what is the horizontal component of the velocity of a stone , hurled at 30m/s at 35 degree to the horizontal
Original post by Ktelesia
what is the horizontal component of the velocity of a stone , hurled at 30m/s at 35 degree to the horizontal

Are you asking for a stone's throw as a projectile? in this case the horizontal compoment is the distance the stone covers during the throw, while the vertical component is the height the stone rises in the air at the same time.

Use the formula for horizontal displacement in projectile motion: x = v0 * t *cos(alpha)

v0 is the velocity your stone is hurled, 'alpha' your angle the stone is thrown. You still need to determine the time t. Some considerations: when the time rises to the maximum height, the projectile motion is symmetric. At this point of vertical component, the horizontal displacement is at the half, before the stone is tumbling to the ground. And the gravity is always with the stone. Can you guess an equation for t?

Spoiler

(edited 11 months ago)