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#wind speed

2 public questions tagged with this topic.

Acceleration and Velocity Analysis

A cyclist moves east at 18m/s while the wind blows south at 24m/s. What is the magnitude of the relative velocity of the

Relative velocity vwc=vw−vc, where vc=18i^,vw=−24j^. 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 30 m/s as the result, so option B is correct.

Ref: NCERT Class 11 Physics > Chapter 3: Motion in a Straight Line > Topic: Acceleration and Velocity Analysis - Part 8

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Acceleration and Velocity Analysis

A car moves north at 12m/s while a wind blows east at 5m/s. What is the magnitude of the car’s velocity relative to the

Velocity components: vx=5m/s,vy=12m/s. 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 13 m/s as the result, so option B is correct.

Ref: NCERT Class 11 Physics > Chapter 3: Motion in a Straight Line > Topic: Acceleration and Velocity Analysis - Part 8

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