It took 50 J to move a shopping cart 5 meters. With what force what is the shopping cart moved

The first law of thermodynamics is as follows: ∆u=q-w , which means in a system is equal to added, minus done by the system. the units for these variables are in .

Two technicians are discussing a starter that clicks repeatedly when the key is turned to the crank position. technician a says the solenoid hold-in winding is open. technician b says the solenoid pull-in winding is open. who is correct?

Derive the formula 2as=v² -u² where the formula have have usual meanings