Question1
The surface charge density on an infinite charged plane is - 2.00 times 10^{ - 6};{rm C}/{rm m}^{2} . A proton is shot straight away from plane at 1.60 times 10^ {6} ;{rm m}/{rm s} . How far does the proton travel before reaching its turning point?
Question2
The driver of a 1700 kg car travelling on a horizontal road at 112 kg/h suddenly applies the brakes. Because of a slippery pavement, the friction of the road on the tires of the car, that is what slows down the car, is 24.0 percent of the weight of the car. What is an acceleration of the car? How many meters does the car travel sooner than stopping under these conditions?