Question

Step 1

Consider the distance at which the pilot should release the boxes be *x*, the time taken by the boxes to reach the children be *t*, the height or distance of the helicopter from the playground be *h*, and the speed of the helicopter be *u*.

The horizontal and vertical components of the speed of the helicopter are,

Step 2

Write the equation of motion, and solve for the time taken by the boxes to reach the children.

Step 3

Take the positive value of the time, and write the expression for the relation between the speed and ti...

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