A ball of mass $$$m$$$ is thrown up to height $$$h$$$ in air with an initial velocity $$$v$$$, as shown. Air resistance is negligible. The acceleration of free fall is $$$g$$$. What is the total work done by the gravitational force on the ball during its flight from $$$P$$$ to $$$Q$$$ ?

zero

$\quad \frac{1}{2} m v^{2}$

$m g h$

$2 m g h$

Physics

IGCSE&ALevel

CAIE

Exam No：9702_w24_qp_11 Year：2024 Question No：18

Answer:

Knowledge points:

6.1.1 give examples of energy in different forms, its conversion and conservation, and apply the principle of conservation of energy to simple examples

Solution:

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A ball of mass $$\(m\)$$ is thrown up to height $$\(h\)$$ in air with an initial velocity $$\(v\)$$, as shown. Air resistance is negligible. The acceleration of free fall is $$\(g\)$$. What is the total work done by the gravitational force on the ball during its flight from $$\(P\)$$ to $$\(Q\)$$ ?

Answer:

Knowledge points:

Solution:

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