a dog basks in the sun when he sees a squirrel and bolts after it . if the dog accelerates at +1.6 metre per second square , how far does he run in 3 seconds ?
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as the accl. is constant so, we can use equation of motion
u = 0m/s
a= 1.6m/s²
t = 3s
s = ?
s = ut+1/2 × at². (2nd equation of motion)
s = 1/2 × 1.6×(3)²
= 0.8 ×9
= 7.2 m
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