A forest fire fighting airplane travels through the air with a groundspeed of 130 km/hr at an altitude of 120m above the forest. At what horizontal distance before the forest fire, should the plane deploy the water so that it lands on the fire? *give your answer in meters, but do not include units in your answer.

A cart with a mass of 25kg moves at a speed of 30m/s towards a cart with a mass of 35kg which is initially at rest. Upon collision, the carts stick together and move together after the collision. Determine the total momentum of the system before the collision.

The property of a moving object to continue moving is what Galileo called

In each of the cases shown below, a ball is released and rolls down the slope shown. In which case does the ball roll with a constant speed?

A car is moving around a circular track with a radius of 250 meters. The car completes one full lap around the track in 90 seconds. What is the car’s angular velocity? Give your answer in radians/sec

Grandfather clocks are designed to have a period of exactly two seconds. Determine the frequency of the pendulum. Give your answer in Hertz.

An the rotating Earth, the points that will have the highest tangential speed are located at

A box with a mass of 5 kg is placed at the top of an inclined plane that is 10 meters long and makes an angle of 30o with the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.2. The box is given a slight push and slides down the incline. Determine the time it takes for the box to reach the bottom of the inclined plane.

A box with a mass of 5 kg is placed at the top of an inclined plane that is 10 meters long and makes an angle of 30o with the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.2. The box is given a slight push and slides down the incline. Calculate the acceleration of the box as it slides down the inclined plane.

A cart with a mass of 25kg moves at a speed of 30m/s towards a cart with a mass of 35kg which is initially at rest. Upon collision, the carts stick together and move together after the collision. Calculate the velocity of the system after the collision.