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#incline plane

2 public questions tagged with this topic.

A 6.8kg block on a 30∘ incline (μk\=0.15) is pulled upward by a 8.8kg mass over a pulley. What is the acceleration? (Tak

For 8.8kg: 8.8g−T=8.8a⇒88−T=8.8a. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 8.8 a as the result, so option A is correct.

Ref: NCERT Class 11 Physics > Chapter 3: Motion in a Straight Line > Topic: Straight Line Motion - Practice Set0

A 6kg block on a 30∘ incline (μk\=0.25) is connected to a 3kg mass over a pulley. What is the acceleration of the system

Assume 6kg moves down the incline, pulling 3kg up. As per NCERT Chapter 3, equations v=u+at, s=ut+½at², v²=u²+2as describe uniformly accelerated motion. Applying correct signs and units gives 2.83 m/s2 as the result, so option B is correct.

Ref: NCERT Class 11 Physics > Chapter 3: Motion in a Straight Line > Topic: Straight Line Motion - Practice Set0