Chapter 3: Q.32. (page 78)

I A cannon tilted upward at $30^{°}$ fires a cannonball with a speed of $100 m / s$ . 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 $= v_{x}$

$= 86.6 m / s$

Step by step solution

Step.1

Step.2.

Angle made by the cannon ball with the ground $θ = 30^{°}$

Magnitude of velocity $v = 100 m / s$

Velocity $\vec{v} = v_{x} \hat{i} + v_{y} \hat{j}$

$\begin{array}{l} = (100 m / s) \cos 30^{°} \hat{i} + (100 m / s) \sin 30^{°} \hat{j} \\ = (86.6 m / s) \hat{i} + (50 m / s) \hat{j} \end{array}$

Component of the cannon ball's velocity parallel to the ground $= v_{x}$

$= 86.6 m / s$

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I A cannon tilted upward at $30^{°}$ fires a cannonball with a speed of $100 m / s$ . What is the component of the cannonball's velocity parallel to the ground?

Short Answer

Step by step solution

Step.1

Step.2.

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

Short Answer

Step by step solution

Step.1

Step.2.

One App. One Place for Learning.

Most popular questions from this chapter

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I A cannon tilted upward at $30^{°}$ fires a cannonball with a speed of $100 m / s$ . What is the component of the cannonball's velocity parallel to the ground?