A car travels a distance of 300km with an average speed of 108m/s. How much time does it taken?
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In order to calculate the speed of an object we must know how far it's gone and how long it took to get there. "Farther" and "sooner" correspond to "faster". Let's say you drove a car from New York to Boston. The distance by road is roughly 300 km (200 miles)
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- Distance covered in 1 hour = \frac{180}{5}=36km
5180
=36km
- Distance covered in 3 hours = 3 x 36 = 108 km
- (ii) To cover a distance of 180 km , time taken = 5 hours
To cover a distance of 1 km , time taken = \frac{5}{180} 1805
- To cover a distance of 54 km, time taken = \frac{5}{180}\times54=1.5hours
1805 ×54=1.5hours
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