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A boy ran towards the edge of the cliff to dive into the sea as shown in the figure below. (a) How fast must he run to make sure that he hits the water and not the rocky ledge below? (b) Assuming that he is able to run at a speed of 5 ms−1, what is his body's speed when he hits the water assuming negligible air friction? (Take g to be 10 ms−2 and give your answers to 3 significant figures)

A boy ran towards the edge of the cliff to dive into the sea as shown in the figure below. (a) How fast must he run to make sure that he hits the water and not the rocky ledge below? (b) Assuming that he is able to run at a speed of 5 ms−1, what is his body's speed when he hits the water assuming negligible air friction? (Take g to be 10 ms−2 and give your answers to 3 significant figures)

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  1. A boy ran towards the edge of the cliff to dive into the sea as shown in the figure below. (a) How fast must he run to make sure that he hits the water and not the rocky ledge below? (b) Assuming that he is able to run at a speed of 5 m s − 1 , what is his body's speed when he hits the water assuming negligible air friction? (Take g to be 10 m s − 2 and give your answers to 3 significant figures)

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