Energy

Dog Snow Tube Hill

Runaway Truck Ramp

A 16,000 kg truck enters a runaway truck ramp moving at 40 m/s. If the truck travels 100 m along the ramp before coming to a stop, find the increase in internal energy of the truck-ramp system.

Grape Lady Falls

While having a grand old time grape treading, a lady on a morning show fell off the 2.4 meter deck and struck the ground. Complete the energy bar chart and find her speed just before striking the ground (she broke a rib according to YouTube comments)

Slide Deck

Car Catapult

Shipbuilders test a launch system for U.S. Navy aircraft by catapulting car-like vehicles into the James River in Virginia.

The vehicles, weighing up to 80,000 pounds, travel at more than 150 miles per hour, flying over the bow of aircraft carrier John F. Kennedy before hitting the water.

The cars are retrieved and relaunched to continue testing the electromagnetic aircraft launch system.

How much work is done on the car by the electromagnetic aircraft launch system?

Source

Hot Dog Rollercoaster

Coming soon

Dynamic Compactification

Dynamic compaction is a method that is used to increase the density of the soil by dropping a heavy weight repeatedly on the ground at regularly spaced intervals. [Source] The impact of the free fall creates stress waves that help in the densification of the soil. These stress waves can penetrate up to 10 meters. [Source]

(a) Generate an energy bar chart. System: weight. Initial = Just after release. Final = Just before striking the ground

(b) Generate an energy bar chart. System: weight + Earth. Initial = Just after release. Final = Just before striking the ground

(c) What is the kinetic energy of the 20 ton [20 000 kg] weight just before it strikes the ground if it was lifted to a height of 25 meters?

(d) How fast is the weight moving just before striking teh ground?

Slingshot

Coming soon, need to find source

MEKHI BECTON

Coming soon

Angry Ram Destroys a Punching Bag

Coming soon

Bicycle Powered Tree House Elevator

Coming soon

Bicycle Powered Tree House Elevator

Coming soon

Boat Lift - Falkirk wheel in Scotland

Coming soon

Boston Cop Slide

Coming soon

Bouncing Cart

Coming soon

Chest Expander

Coming soon

Cockatoo Bicycle Wheel

Coming soon

Downhill Skateboard World Speed Record Pete Connolly

Coming soon

Bungee

Coming soon

Medicine Ball Slam

A child lifts a 6.0 kg medicine ball to a height of 1.7 meters before slamming it on the ground. If the medicine ball was moving at 8.0 m/s just before striking the ground, determine the work done on the ball by the child.

Approximate g to be 10 N/kg as necessary.