The correct answer to the first question would be the statement 'A protractor and ruler are used to take accurate measurements'. The protractor and the ruler can be used to construct polygons and parallel lines interchangeably.
The correct answer to the second question would be 'open the compass to the width of the line and draw two arcs'.
Answer:
1.62533254
Step-by-step explanation:
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Answer:
hope it helps
Step-by-step explanation::
a) Consider a body having initial velocity 'u'. Suppose it is subjected to a uniform acceleration 'a' so that after time 't' its final velocity becomes 'v'. Now, from the definition of acceleration we know that:
Acceleration = Time taken Change in velocity or Acceleration = time taken
Final velocity- Initial velocity
So, a= t
v−u
at=v−u and, v=u + at
where v= final velocity of the body
u= initial velocity of the body
a= acceleration
and t= time taken
(b) Initial velocity, u=54km/h=15m/s
Final velocity, v=0m/s
Time, t=8s
Acceleration, a=?
a= t
v−u
= 8
0−15
= 8
−15
m/s 2
=−1.875m/s 2
