A car is moving rectilinearly on a horizontal path with acceleration $a_{0}$. A person sitting inside the car observes that an insect $S$ is crawling up the screen with an acceleration $a$. If $ heta$ is the inclination of the screen with the horizontal the acceleration of the insect

Question

A car is moving rectilinearly on a horizontal path with acceleration $a_{0}$. A person sitting inside the car observes that an insect $S$ is crawling up the screen with an acceleration $a$. If $	heta$ is the inclination of the screen with the horizontal the acceleration of the insect

Dr. Abubacker · Accepted Answer

(c) Acceleration of insect with respect to car ${\overrightarrow{\mathbf{a}}}_{sc}$ is $a$ in the direction shown in figure. Absolute acceleration of insect is
[image:4_image112.jpeg]
${\overrightarrow{\mathbf{a}}}_{s} = {\overrightarrow{\mathbf{a}}}_{sc} + {\overrightarrow{\mathbf{a}}}_{c}$
Component of ${\overrightarrow{\mathbf{a}}}_{s}$ along horizontal is $a_{0} - {a\ cos}	heta$ and perpendicular to screen is $a_{0}\sin	heta$

Q. A car is moving rectilinearly on a horizontal path with acceleration $a_{0}$. A person sitting inside the car observes that an insect $S$ is crawling up the screen with an acceleration $a$. If $\theta$ is the inclination of the screen with the horizontal the acceleration of the insect

Explanation

Reviewed by Dr. Abubacker

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