A ball is thrown at an angle of 60.0 ° above the horizontal relative to the ground. It is launched from a height of 2.00 m above the ground with a speed of 20.0 m / s and does not experience air resistance. The time the ball remains in the air before hitting the ground is closest to

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Abanked road comer of radius 146 m is to be constructed. if the comer is designed for vehicles moving with a speed of 20.0 m/s, what should the banking angle be, in units of degrees?