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A motorcycle crosses the point A with 10 m/s and uniformly increases the speed to 30 m/s till it reaches point C. Points A B and C are equally spaced. Where would the motorcycle have a speed of 20 m/s?
A) At B
B) b/w A & B
C) b/w B & C
D) depends on the value of acceleration

Question image for A motorcycle crosses the point A with 10 m/s and

Joydeep Sarkar

7 Years agoGrade

2 Answers

Saurabh Koranglekar

7 Years ago

Dear student

v*v = u*u + 2as

900 = 100 + 2 ( a ) ( 2x)

200/x. = a

Now, similarly 300 = 2 ( 200/x) s

s = 3x/4

Therefore option B

Ratnesh Asati

4 Years ago

v²=u²+2aS
900=100+2(a)(2d)
200/x=a
Now,
For v=20m/s,u=10m/s
400-100=2(200/d)S
S=3d/4
Which is between A to B point
HENCE,OPTION (B) IS CORRECT

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