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Laws Of Motion

Question
CBSEENPH11016691
Wired Faculty App

In the figure below, each mass is m. Find the tension T1 and T2.

Solution
Let a be the acceleration of the system.
The equation of motion of mass A is, 
mg space minus space straight T subscript 2 space equals space ma space space space space space space space... left parenthesis 1 right parenthesis space The space equation space of space motion space of space mass space straight B space is comma space mg space plus space straight T subscript 2 space minus space straight T subscript 1 equals space ma space space space space space... space left parenthesis 2 right parenthesis space The space equation space of space moton space space of space mass space straight C space is comma space straight T subscript 1 minus space mg space equals space ma space space space space space space space space space space space space space... space left parenthesis 3 right parenthesis space Adding space equations space left parenthesis 1 right parenthesis comma space left parenthesis 2 right parenthesis space and space left parenthesis 3 right parenthesis comma space we space get acceleration comma space straight a space equals space straight g divided by 3 space From space equation space left parenthesis 1 right parenthesis comma space we space have straight T subscript 2 space equals space mg space minus space ma space equals space mg space minus space straight m straight g over 3 space equals space 2 over 3 mg From space equation space left parenthesis 3 right parenthesis comma space we space have straight T subscript 1 space equals space mg space plus space ma space equals space mg space plus straight m straight g over 3 space equals space 4 over 3 mg  

Some More Questions From Laws of Motion Chapter

Is Aristotle’s law of motion now correct?

State Galileo’s law of motion.

Define inertia.

When the branches of an apple tree are shaken, the apples fall down. Why?

A person jumping out from a moving car or bus falls forward. Why?

Due to what type of inertia, the spark leaves the grind stone tangentially while sharpening the knife?

Which law of motion is also called law of inertia?

What is measure of inertia of body?

Which law of motion defines the force?

What happens to a stone tied to the end of string and whirled in a circle if the string suddenly breaks?

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