Find the kinetic energy K of the car at the top of the loop. Express your answer numerically, in joules.

The description and the full details of the question can be found in the image attached below.

7840 J

Explanation:

From the question in the image attached below, the objective was to find the kinetic energy K of the car at the top of the loop.

Given that;

mass = 50 kg

height h = 48 m

loop of the radius R = 16 m

The kinetic energy K of the car was as a result of the conversion of potential energy.

Therefore, the kinetic energy can be calculated by using the formula:

K.E = mg( h - 2R)

K.E = (50 kg × 9.8 m/s²) (48 m - 2(16 m))

K.E = 490 × 16 J

K.E = 7840 J

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