Physics #4

According to Kepler's laws, the planets orbit the Sun along the paths that are

A rock is trown upward at an angle of 50 degrees with respect to the horizontal. As it rises, neglecting air resistance, the vertical component of its velocity

A ball is thrown upward at 50 degrees with respect to the horizontal. As it rises, neglecting air resistance, the horizontal component of its velocity

A stone is thrown horizontally from the top of a cliff. One second after it has left your hand, its vertical distance below the top of the cliff is

A bullet fired horizontally from a rifle begins to fall

A projectile is launched vertically upward at 50 m/s.If air resistance is negligible, its speed upon returning to its starting point is

An Earth satellite is simply a projectile

A hunter on level ground fires a bullet at zero-degree angle with the horizontal while simultaneously dropping another bullet from the level of the rifle. Which bullet will hit the ground first?

An object is dropped and freely falls to the ground with an acceleration of 1g. If it is thrown upward at an angle instead, its acceleration will be

Two projectiles are fired from ground level at equal speeds but different angles. One is fired at an angle of 30 degrees and the other at 60 degrees. Neglecting air resistance, the projectile to hit the ground first will be the one fired at

A projectile is fired vertically from the surface of the Earth at 8 km/s. The projectile will

An object is thrown vertically into the air. Because of air resistance, the time for its descent will be

A river 100 yards wide flows due South at 1 yard per second. A boat that goes at one yard per second relative to the water is pointed due East as it crosses from the West bank. The boat reaches the East bank

What prevents satellites such as the space shuttle from falling?

The fastest moving planet in a solar system is