Chapter 7
Work, Energy, and Simple Machines
CBSE Class 9
Science Solutions
Educart Science class Class 9 NCERT Exemplar cover
Question:

To reach a higher floor, we find climbing an inclined ladder easier in comparison to climbing a vertical ladder. Explain why.[Pg. No. 132]

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Answer: Verified

Climbing an inclined ladder is easier because less force is required to move upward along a slope. The inclined path increases the distance over which we climb, thereby reducing the effort needed to reach the same height compared to a vertical ladder.

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More NCERT Questions
Explain why roads on hills are built to wind around in gentle slopes rather than going straight up? [Pg. No. 132] Why is it easier to open the lid of a can by using a spoon as shown in Figure.[Pg. No. 135] State whether True or False. (A) Work is said to be done when a force is applied, even if the object does not move. (B) Lifting a bucket vertically upward results in positive work done on the bucket. Why do you push an object closer to scissors fulcrum when you want to cut an object which is hard? [Pg. No. 135]