1.

An object travels at constant speed of 10m/s for 10s. During the next 5s, it accelerates uniformly to 20 m/s.What is the total distance travelled by the object?a. 150mb. 175mc. 200md. 300m​

Answer»

Answer:

Option (B.) 175m

Explanation:

travels at 10m/s for 10 s.

accelerates to 20 m/s in 5s

DISTANCE  = area under graph = triangle(slope) + rectangle

area under  slope = 0.5(5 x 10) = 25m

Ar(rectangle) = L x B = 15 x 10 = 150m

Total distance  travelled = 150 = 25 = 175m

Option (b.) 175m



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