Looking for reliable answers? Westonci.ca is the ultimate Q&A platform where experts share their knowledge on various topics. Get detailed answers to your questions from a community of experts dedicated to providing accurate information. Discover detailed answers to your questions from a wide network of experts on our comprehensive Q&A platform.

if an object travelling at 198 km/hr accelerates at 2.00 m/s ^2 for 3.40 seconds, how far has the object traveled?

Sagot :

We know that

• The initial velocity is 198 km/hr.

,

• The acceleration is 2m/s^2.

,

• The time elapsed is 3.40 seconds.

We have to find the distance covered. To do that, use the following formula that relates to initial velocity, time, acceleration, and distance.

[tex]\begin{gathered} d=v_0t+\frac{1}{2}at^2 \\ \end{gathered}[/tex]

But, first, we have to transform 198 km/hr to m/s. We know that 1 km equals 1000 m, and 1 hr equals 3600 seconds.

[tex]198\cdot\frac{km}{hr}\cdot\frac{1hr}{3600\sec}\cdot\frac{1000m}{1\operatorname{km}}=\frac{198\cdot1000}{3600}\cdot\frac{m}{s}=55(\frac{m}{s})[/tex]

Once we transform the speed, we are able to find the distance traveled.

[tex]\begin{gathered} d=55(\frac{m}{s})\cdot3.4\sec +\frac{1}{2}\cdot2(\frac{m}{s^2})\cdot(3.4\cdot\frac{m}{s})^2 \\ d=187m+11.56m \\ d=198.56m \end{gathered}[/tex]

Therefore, the object traveled 198.56 meters.