Hammering a Nail!
How much will the nail temperature increase if Stefano hits it 22 times?
Pole Vault!
The Olympic record for the pole vault event is 6.03 m, set by Thiago Braz (75 kg) in 2016.Β Calculate the minimum speed at which Thiago must have run just before vaulting over the beam and thereby breaking the Olympic record.
Toy Track
How fast can the toy car go?
Archery!
If all the elastic energy of the bow is transmitted to the arrow, what is this elastic energy?
2 Charges on an Axis!
Solve for the electric potential.
Globe of Steel!
Calculate the minimum speed before entering the loop for a successful maneuver.
Pinball Wizard
Calculate the spring constant and the speed of the pinball just after pulling the plunger.
Raindrops Keep Falling on my Head!
Calculate the speed of a raindrop just before hitting the ground
Soccer Ball Rolling Down a Hill!
How fast is the soccer ball center of mass when it reaches the end of the slope?
Umbrella!
Calculate the change in mechanical energy when the umbrella is opened.
Water Fountain!
Enough power to "lift up 1 meter a 1 Ton anvil, in half a second".
Ball on a Hemisphere!
Find the speed of the sphere's centre as a function of the angle.
One WTC Tower!
Calculate the percentage of mechanical energy the ball loses each time it bounces.
Recess Fun!
The school bell rings, and the kids run to the playground. How fast can a kid swing?
Celebrating a Soccer Goal
Jose Mora2024-02-25T20:03:47-05:00A soccer player celebrates a goal by falling to his knees and sliding across the ground. If the mass [...]
Sombrilla
Calcula el cambio en la energΓa mecΓ‘nica cuando se abre el paraguas.