Question

14
A uniform metal rod of length 80cm and mass 3.2kg is supported
horizontally by the two vertical spring balances C and D. Balance C is
20cm from one end while balance Dis 30cm from the other end. Find the
reading on each balance
(3mks)​

Answer 1

Here is your answer:

Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2. If the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

put this formula and you get your answer ..

Explanation:

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