Question

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lesson 02 checkpoint
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kelvin pushes a block with f newtons of force.
what additional information is needed to determine the acceleration of the block?
mass of the block
acceleration due to gravity
initial velocity of the block
mass of kelvin

Explanation:

According to Newton's second - law of motion $F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration. To find the acceleration $a=\frac{F}{m}$, so if the force $F$ is known, the mass of the block is needed to calculate the acceleration.

Answer:

mass of the block