I’d say a negative charge cause opposites attract but I’m not sure
Explanation:
the average velocity of the car is 15 m/s example I have this on a test
Momentum = mv
where m is the mass of an electron and v is the velocity of the electron.
v = momentum ÷ m
= (1.05×10∧-24)÷(9.1×10∧-31) = 1,153,846.154 m/s
kinetic energy = (mv∧2)÷2
= (9.1×10∧-31 × 1,153,846.154∧2) ÷2
= (1.21154×10∧-18) ÷ 2
= 6.05769×10∧-19 J
-0 m/s
- average velocity=displacement/time
- the runners displacement is zero so her average velocity must be zero
