Explain why, a single-fixed pullery is used to lift a load even if its MA is equal to 1?
A
The direction of the force required to lift the object is changed.
B
The force required to move the object is applied over a greater distance.
C
More work is done while moving the object
D
Less force is needed to lift the object.
Text Solution
Verified by Experts
The correct Answer is:
A
Less force is needed to lift the object less work is done when moving the object. The direction of the force required to lift the object is changed.
Topper's Solved these Questions
NSO QUESTION PAPER 2020-21 SET A
SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION|1 Videos
NSO QUESTION PAPER 2019-20 SET A
SCIENCE OLYMPIAD FOUNDATION |Exercise SCIENCE|13 Videos
SOF NATIONAL SCIENCE OLYMPIAD 2020 PAPER
SCIENCE OLYMPIAD FOUNDATION |Exercise ACHIEVERS SECTION |1 Videos
Similar Questions
Explore conceptually related problems
If an effort of 10 N is applied on a single-fixed pulley to lift a weight of 10 N, then find out its mechanical advantage.
Explain why baking soda is used as an antacid .
The following figure shows the combination of a movable pulley P_(1) with a fixed pulley P_2 used for lifting up a load W. State function of fixed pulley P_2 .
SCIENCE OLYMPIAD FOUNDATION -NSO QUESTION PAPER 2020-21 SET A-ACHIEVERS SECTION
