Horizontal & Vertical Components (AQA A-Level Mathematics): Quizzes

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Horizontal & Vertical Components
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Which axis is the horizontal component of a vector parallel to?

The xx-axis

Which axis is the vertical component of a vector parallel to?

The yy-axis

What formula gives the horizontal component vxv_x of a vector with magnitude vv and angle θ\theta?

vx=vcos⁡θv_x = v \cos \theta

What formula gives the vertical component vyv_y of a vector with magnitude vv and angle θ\theta?

vy=vsin⁡θv_y = v \sin \theta

What two pieces of information are needed to resolve a vector into components?

Magnitude and angle with horizontal

In projectile motion without air resistance, what happens to the horizontal component of velocity?

It remains constant

What affects the vertical component of velocity in projectile motion?

Gravity

A ball thrown at 20 m/s at 30° above horizontal has what horizontal component? (Use cos⁡30°=0.866\cos 30° = 0.866)

17.32 m/s

How are horizontal and vertical components of motion related in projectile motion?

They are independent

What is the value of gravitational acceleration gg used in vertical motion analysis?

9.81 m/s²

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