Motion Under Gravity (Leaving Cert Applied Maths): Quizzes

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Motion Under Gravity
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What value of acceleration due to gravity is used in Applied Maths?

9.8 m/s29.8 \text{ m/s}^2

What type of acceleration does motion under gravity represent?

Uniform acceleration

What acceleration value should be used for an object thrown vertically upwards?

a=−9.8 m/s2a = -9.8 \text{ m/s}^2

What acceleration value is used for falling objects?

a=+9.8 m/s2a = +9.8 \text{ m/s}^2

What is the velocity at maximum height for an object thrown upwards?

0 m/s0 \text{ m/s}

How does time to reach max height compare to time falling back down?

They are equal

Which equation relates velocity, initial velocity, acceleration, and displacement?

v2=u2+2asv^2 = u^2 + 2as

A stone thrown up at 35 m/s35 \text{ m/s} returns to ground. How long does this take?

7.1 s7.1 \text{ s}

What max height does a stone reach when thrown upwards at 35 m/s35 \text{ m/s}?

62.5 m62.5 \text{ m}

Why is acceleration negative for objects thrown upwards?

All of these

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