Question

18.  Study the velocity-time graph and calculate.        (a)  The acceleration from A to B

Answer 1

Answer:

(a) a = (25 - 0) / (3 - 0) = 8.3 m/s2

(b) a = (20 - 25 ) / (4 - 3) = -5 m/s2

(c) Distance = Area of triangle ABE = 1 / 2 × 3 × 25 = 37.5 m  

(d) V = (20 - 0) / 2 = 10 m/s

(e) This Distance = Area of trapezium BCFE  

= 1 / 2 (25 + 20) × (4 - 3) = 22.5 m

Explanation:

Answer 2

Explanation:

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