Afather lifts a toddler 1.5m up in the air. the child gains 187.5j of gravitational potential energy as a result. what is the mass of the toddler? (assume that the gravitational field strength is 10n/kg.)

Mass of toddler = 12.5 kg

Explanation:

 The potential energy of a body is given by the expression, PE = mgh, where m is the mass of the body, g is the acceleration due to gravity value and h is the height of the body.

 Potential energy = 187.5 J

 Height = 1.5 m

 Substituting

     187.5 = m * 10 * 1.5

     m = 12.5 kg

So mass of toddler = 12.5 kg

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