I think it is true
if me gets it wrong me sorry me not
that smart ༎ຶ‿༎ຶ
Answer:
the answer is X
Explanation:
who says it's Z didnt look at the question, z is for the first stage question
Answer: Twice the previous time would be taken to reach the same speed v with the puck of mass 2m.
Explanation:
Let a Force pushes the hockey puck of mass m.
Then acceleration, a= \frac{F}{m}a=mF
From the equation of motion,
\begin{gathered}\➪ v=u+at\\ v=0+\frac{F}{m}\Delta t\end{gathered}⇒v=u+atv=0+mFΔt ......(1)
In the second case, when mass is 2m, then acceleration,
a'=\frac{F}{2m}a′=2mF
and t' is the time taken.
The final speed is v,
\begin{gathered}\➪ v=0+ a't'\\ \➪ \frac {F}{m}\Delta t=\frac{F}{2m}t'\\ \➪ t'= 2\Delta t\end{gathered}⇒v=0+a′t′⇒mFΔt=2mFt′⇒t′=2Δt using equation (1)
Hence, it would take two times the previous amount of time to push the pluck of double mass.
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Answer:
10.296
Explanation:
From point A to point B, the line goes 5 spaces to the left and 9 spaces down. You can use the Pythagorean theorem and solve for the c value. 5 squared is 25, 9 squared is 81, 25 + 81 = 106. The square root of 106 is approximately 10.296. Hope that helped
