What is the force felt by the 64-kg occupant of the car? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the direction opposite to the initial velocity. F =

The force is

Explanation:

Given that,

Mass of car = 64 kg

Suppose,  a 1400-kg car that stops from 34 km/h on a distance of 1.7 cm.

We need to calculate the acceleration

Using formula of acceleration

Where, v = final velocity

u = initial velocity

a = acceleration

s = distance

Put the value into the formula

We need to calculate the force

Using formula of force

Negative sign shows the direction of the force is in the direction opposite to the initial velocity.

Hence, The force is

d) the number of neutrons plus the number of protons

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.