1.

The distance travelled in t seconds by an object starting with a speedof u metres/second and moving along a straight line with speedincreasing at the rate of a metres/second every second is given byut + 5at metres. An object moving in this manner travels 10 metres in2 seconds and 28 metres in 4 seconds. With what speed did it start? Atwhat rate does its speed change?tzTautions​

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