# Projectile motion related numerical

Tags: newton law, projectile motion
 P: 3 Question a stone is thrown vertically upwards. if it takes 30 seconds to return to the ground, How high does the stone go?.. I need asap solution
 P: 477 Hi there, Come on. I believe you can answer that by yourself. You just need to apply the accelerated linear motion equations and you get to your answer
 P: 3 can u provide that linear accelerated motion...
 P: 477 Projectile motion related numerical Not really, but I can help you find them. Acceleration is define as a variation of speed: $$a = \frac{v_1 - v_0}{t}$$ In the case of accelerated linear motion, the average speed is equal to the mean speed: $$\overline{v} = \frac{v_0 + v_1}{2}$$ From these three equations, you have the solution to your question.