Exam 10: Projectile and Satellite Motion

A bullet is fired horizontally with an initial velocity of 300 m/s from a tower 20 m high.If air resistance is negligible,the horizontal distance the bullet travels before hitting the ground is about

Angular momentum is greater for a satellite when it is at the

A woman on the surface of the Earth has a mass of 50 kilograms and a weight of 490 newtons.If the woman were floating freely inside a space habitat far away from Earth,she would have

The circular path of a satellite orbiting the Earth is characterized by a constant

A satellite in an elliptical orbit travels at constant

Roll a bowling ball off the edge of a table.As it falls,its horizontal component of velocity

Angular momentum is conserved for a satellite in

A river 100 m wide flows due south.A boat that goes 1 m/s relative to the water is pointed due east as it crosses from the west bank.Relative to the Earth,the boat travels

The force of gravity does work on a satellite when it is in

A hunter on level ground fires a bullet at an angle of 2 degrees below the horizontal while simultaneously dropping another bullet from the level of the rifle.Which bullet will hit the ground first?

Throw an object upward at a 45 degree angle.With no gravity it will follow a straight-line path.But because of gravity,at the end of 1 second,it is

A river 100 m wide flows due south at 1 m/s.A boat that goes 1 m/s relative to the water is pointed due east as it crosses from the west bank.The boat reaches the east bank

Our moon travels the fastest as it orbits the Earth when it is

A river 100 m wide flows due south at 1 m/s.A boat that goes 1 m/s relative to the water leaves the west bank.To land at a point due east of its starting point,the boat must be pointed

A lunar month is about 28 days.If the moon were farther from the Earth than it is now,the lunar month would be

Both Newton and Kepler considered forces on the planets.Kepler hypothesized the direction of the forces was

A projectile is fired vertically from the surface of the Earth at 5 km/s.The projectile will

The fastest moving planet in a solar system is

An airplane travels at 141 km/h toward the northeast.What is its component of velocity due north?

An airplane flies at 40 m/s at an altitude of 50 meters.The pilot drops a heavy package which falls to the ground.Where,approximately,does the package land relative to the plane's new position?