Acar travels at a velocity of 10 m/s north for 50 s. which of the following
equations correctly determines the car's displacement?
a) displacement = 50 s/(10 m/s)
b) displacement = (10 m/s north) /50 s
c) displacement = (10 m/s north) * 50 s
d) displacement = 50 s/(10 m/s north)

Explanation:

Given that,

Velocity of car, v = 10 m/s (towards north)

Time, t = 50 s

The shortest path covered by the car is called its displacement. Mathematically it is given by

d = v × t

v is the velocity of the car

t is the time taken

Here, displacement = (10 m/s north) × 50 seconds

So, the correct option is (c).

an ion is a charged atom or molecule. it is charged because the number of electrons do not equal the number of protons in the atom or molecule. an atom can acquire a positive charge or a negative charge depending on whether the number of electrons in an atom is greater or less then the number of protons in the atom.

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force