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#range

7 public questions tagged with this topic.

Motion in a Plane and Projectile Motion

A projectile is launched at 42m/s at 30∘. What is its range? (Take g\=9.8m/s2,sin⁡60∘\=0.866)

Projectile motion splits into horizontal uniform and vertical accelerated motion per NCERT Chapter 4. Range R=u²sin2θ/g and max height H=u²sin²θ/2g. Using given u, θ, g, calculation yields 100 m. Hence option A satisfies projectile formulas.

Ref: NCERT Class 11 Physics > Chapter 4: Motion in a Plane > Topic: Motion in a Plane and Projectile Motion

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Acceleration and Velocity Analysis

A stone is dropped from a height of 20m with a horizontal speed of 10m/s. What is its horizontal distance from the drop

For free fall, s=½gt² and v²=2gh per NCERT. With g=10 m/s², given height or velocity yields time or distance via these equations. Substituting values gives result matching 20 m. This confirms option C as correct by uniformly accelerated motion equations.

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

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