Question

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Answer 1

Answer:

b) 875 m

Explanation:

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Answer 2

Given:

Initial velocity (u) = 5m/s

Final velocity (v) = 30m/s

Time taken (t) = 50s

To find:

Distance covered by car (s)

Solution:

Since speed vs time graph has a constant slope,

motion is uniformly accelerated.

Acceleration (a) = slope of graph

= 5/10 = 1/2

Using equation of motion:

${v}^{2} - {u}^{2} = 2as$

Substituting,

s= (900-25)/2 a

s= 875m

Distance travelled by car is (b) 875m.