A person driving a car suddenly applies brakes on seeing a child on road ahead. If he is not wearing

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4-1.Newton's Laws of Motion

easy

A person driving a car suddenly applies the brakes on seeing a child on the road ahead. If he is not wearing seat belt, he falls forward and hits his head against the steering wheel. Why ?

Option A

Option B

Option C

Option D

Solution

When a person driving a car suddenly applies the brakes, the upper part of the body continue

to move forwad due to inertia of motion. Lower part of the body slow down with car. If he is not wearing seat belt, he falls forward and can hit his head against steering wheel.

Standard 11

Physics

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(NEET-2017)

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A mass of $1 kg$ is suspended by a string $A$. Another string $C$ is connected to its lower end (see figure)., if the string $C$ is stretched slowly, then

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A trolley of mass $300 \;kg$ carrying a sandbag of $25 \;kg$ is moving uniformly with a speed of $27\; km / h$ on a frictionless track. After a while, sand starts leaking out of a hole on the floor of the trolley at the rate of $0.05 \;kg s ^{-1} .$ What is the speed (in $km/h$) of the trolley after the entire sand bag is empty?

easy

A person driving a car suddenly applies the brakes on seeing a child on the road ahead. If he is not wearing seat belt, he falls forward and hits his head against the steering wheel. Why ?

Solution

Similar Questions

A girl jumps down from a moving bus, along the direction of motion of the bus, tilting slightly forward. She falls on $(a)$ a sheet of ice $(b)$ a patch of glue.

An athlete does not come to rest immediately after crossing the winning line due to the

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