In which of the following cases does a car have a negative velocity and a positive acceleration? A car that is traveling in the: a. +x direction decreasing in speed.
b. +x direction increasing in speed.
c. −x direction decreasing in speed.
d. −x direction increasing in speed.
e. −x direction at a constant 20 m/s.

Acar traveling at a constant speed of 22.0 m/s passes a trooper hidden behind a billboard. one second after the speeding car passes the billboard, the trooper sets off in chase with a constant acceleration of 3.50 m/s2. how long does it take the trooper to overtake the speeding car? solve this problem by a graphical method. on the same graph, plot position versus time for the car and the trooper.

What would be the net charge of 1 gram gold piece after removal of 1% of its electrons

What is the volume of 2400kg of gasoline (petrol) if the density of petrol is 0.7g/km3