Expert in study
alarm
Ask
Physics

a stone thrown at an angle of 30 degrees fell to the ground 3 seconds after the throw. find the speed of the throw, the range of flight, the highest elevation.

Register to add an answer
answers: 1
Expert:

Speed - v;

Vertical component speed - v * sin(30);

During time t, the speed changed to - v * sin(30);

The change in speed over time t is equal to g * t;

3 * v * sin(30) = g × t;

V = g * t/(3 * sin(30));

T - flight time;

Horizontal velocity component v * cos(30) = g * t * cos(30)/(3 * sin(30));

Flight range L = v * cos(30) * t = g * t * cos(30)/(3 * sin(30)) * t = g * t2/(3 * tg(30)) = 10 * 32/(2 * (1/√3)) = 30√3 m;

0
For answers need to register.
Contacts
mail@expertinstudy.com
Feedback
Expert in study
About us
For new users
For new experts
Terms and Conditions

Expert In Study | Helping students

ExpertInStudy.com is a smart community of thousands of students and experts. It is thanks to them that even the most difficult questions get quick and good answers. Here you can become an expert and start making money!