Airplane tickets are extremely cheap right now. You decide to take a trip to Paris for a quick weekend vacation. You hop on the 25,000 kg airplane and your journey begins. The airplane is cruising at a velocity of 155 m/s at a height of 6,000 m. The pilot decides to glide up to a
height of 7,000 m. How fast is the airplane now traveling?
Useg - 9.8 m/s^2

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)