Potential and kinetic energy calculations 1

What is the gravitational potential energy of a 10 kg object that is 5 meters above the ground? (Assume $$g = 9.8 \, \text{m/s}^2$$ )

Calculate the kinetic energy of a car with a mass of 1500 kg moving at a velocity of 20 m/s.

If an object has a mass of 25 kg and is located 8 meters above the ground, what is its gravitational potential energy? (Use $$g = 9.8 \, \text{m/s}^2$$ )

A 0.5 kg basketball is dropped from a height of 10 meters. What is its kinetic energy just before it hits the ground? (Ignore air resistance and use $$g = 9.8 \, \text{m/s}^2$$ )

What is the kinetic energy of a 2 kg object moving at a velocity of 3 m/s?

A bird with a mass of 0.2 kg is flying at a height of 50 meters. Calculate its gravitational potential energy. (Use $$g = 9.8 \, \text{m/s}^2$$ )

If a roller coaster has a mass of 800 kg and reaches a top speed of 25 m/s, what is its kinetic energy at this speed?

A book with a mass of 1 kg is placed on a shelf 2 meters high. Calculate its gravitational potential energy. (Assume $$g = 9.8 \, \text{m/s}^2$$ )

What is the kinetic energy of a 50 kg skateboarder moving at 10 m/s?

A soccer ball of mass 0.45 kg is kicked vertically upwards and reaches a maximum height of 20 meters. What is its gravitational potential energy at this height? (Use $$g = 9.8 \, \text{m/s}^2$$ )