Positive, Negative and No Work

Work done by frictional force on a body

• Positive

• Negative

• Zero

Work done by gravitational force on a body thrown up.

• Positive

• Negative

• Zero

Tags

NGSS.HS-PS2-4

Work done by gravitational force on a body falling down freely.

• Positive

• Negative

• Zero

Work done by a man standing with a load on his head.

• Positive

• Negative

• Zero

Work done by a man walking with a load on his head

• Positive

• Negative

• Zero

work done by a man when lifting a body up.

• Positive

• Negative

• Zero

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-4

Work done by normal force on a book pushed on a table.

• Positive

• Negative

• Zero

Work done when you raise a load up with the help pf a Pulley

• Positive

• Negative

• Zero

Tags

NGSS.HS-PS2-4