Question

1. A stone is thrown upwards with an initial velocity of 25 m/s at angle of 30° to the ground a. Show that the vertical component if the velocity at the starting is 12.5 m/s upwards.

Answer 1

Answer:

sin 30° = $\frac{v_{y} }{25}$

Multiply each side by 25 to cancel the 25 under $v_{y}$

(25)· sin 30° = $v_{y}$

Multiply everything on the left side.

12.5 $\frac{m}{s}$ = vertical velocity component.

I attached a picture, I hope it helps.