Question

What is the maximum height obtained by a 12 g apple slung from a slingshot at an angle of 78° from the

horizontal with an initial velocity of 18 m/s?
Please really important anyone I have 3 min left

Answer 1

Answer:15.78 m

Explanation:

Given

mass of apple m=12 g

launch angle
`\theta =78^(\circ)`

initial velocity
`u=18\ m/s`

For the projectile motion, maximum height is given by

`H_(max)=(u^2\sin^2 \theta)/(2g)`

Putting values

`H_(max)=(18^2\cdot \sin^2(78^(\circ)))/(2*9.81)`

`H_(max)=(324*0.956)/(2*9.81)=15.78\ m`