A car approaches a hill with constant speed. When it is at a distance of 0.96 km, it blows horn whose echo is heard by the driver 6 second later. If the speed of sound in air is 300 m/s. calculate the speed of the car. |
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(b) |
(c) |
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A car approaches a hill with constant speed. When it is at a distance of 0.96 km, it blows horn whose echo is heard by the driver 6 second later. If the speed of sound in air is 300 m/s. calculate the speed of the car. |
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(a) |
(b) |
(c) |
(d) |

1 Answer

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