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Chapter 3: Q.32. (page 78)

I A cannon tilted upward at30掳 fires a cannonball with a speed of 100m/s. What is the component of the cannonball's velocity parallel to the ground?

Short Answer

Expert verified

Component of the cannon ball's velocity parallel to the ground =vx

=86.6m/s

Step by step solution

01

Step.1

02

Step.2.

Angle made by the cannon ball with the ground胃=30掳

Magnitude of velocityv=100m/s

Velocity v鈫�=vxi^+vyj^

=(100m/s)cos30掳i^+(100m/s)sin30掳j^=(86.6m/s)i^+(50m/s)j^

Component of the cannon ball's velocity parallel to the ground =vx

=86.6m/s

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