Question

A bucket of water tied to a rope is being pulled up from a well as
shown in the figure below (fig 1). Name the two forces acting on the
bucket in the upward and downward directions. Also mention
whether these forces are contact or non-contact forces by nature

Answer 1

Explanation:

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)Positive

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) Negative

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.(d) As force and displacement are in the

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.(d) As force and displacement are in thesame direction, work done is positive.

Explanation:Work done is considered positive when the displacement is in the same direction as that of the applied force and negative when the displacement is in the opposite direction of applied force.(a)PositiveIn the given case, force and displacement are in the same direction. Hence, the sign of work done is positive. In this case, the work is done on the bucket.(b) NegativeIn the given case, the direction of force (vertically downward) and displacement (vertically upward) are opposite to each other. Hence, the sign of work done is negative.(c) As force and displacement are in opposite directions, work done is negative.(d) As force and displacement are in thesame direction, work done is positive.(e) As force and displacement are in opposite directions, work done is negative.