An arrow is shot from a height of 1.3 m toward a cliff of height h . it is shot with a velocity of 34 m/s at an angle of 58.1º above the horizontal. it lands on the top edge of the cliff 4.1 s later. what is the height of the cliff?

The height of the cliff is 39.655 m

Given:

Height at which the arrow was shot, h = 1.3 m

Velocity of the arrow, u = 34 m/s

Angle,

Time of the fight, t = 4.1 s

Solution:

Let the Height of the cliff be H

Since, the motion of the object is projectile motion and the direction of motion  is vertical at some angle

Therefore, we consider the vertical component of velocity, .

Now,

The Height of the cliff is given by applying the second equation of motion in the projectile:

Thus

s = 38.355 m

Now, the height of the cliff, H:

H = s + h = 38.355 + 1.3 = 39.655 m

carla slowed down in the beginning of her trip, stopped, and then sped up