A boy playing on the roof of a 10m high building throws a ball with a speed of 10m/s at an angle of 30° with the horizontal. Find how far from the throwing point will the ball be at the height of 10m from the ground.

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid