Question

4. A spring of spring constant 50 N/m is compressed by 1
190 cm from its original length. Find the work done by the
spring on the external agent.
Ans. -2.5 x 10-3J

Answer 1

Answer:

-25-3

=-28

Mark me bralist ans

Answer 2

Answer:

use formulae W=kx²/2

where k is spring constant and x is the distance in m by which it is compressed .. so directly put values in formulae