<u>body of mass 30kg weighs 60N on planet X. Which one of the following statements is true?</u>
<u>answer</u><u> </u><u>C. The acceleration due gravity on X is less than that on the earth</u>
Answer:
1.25 rev/s
Explanation:
N = mv^2/r (normal force )
f = μN [Frictional force ]
f = mg
μN = mg
μ(mv^2/r) = mg
v = √(rg/μ)
min rotational velocity
v = √(rg/μ) = √(2.5 * 9.8/0.40) = 7.83 rad/sec
= 7.83/2π = 1.25 rev/s
Answer: Positive velocity is then speed towards right, and negative velocity is speed towards left. It is the same for acceleration: negative acceleration is acceleration towards left. It slows objects moving towards right
Explanation: In physics calculations, acceleration — just like displacement and velocity — can be positive or negative. can u help me now pls ?
Answer:
We would likely see a decrease in the demand for energy drinks.
Explanation:
The acceleration at the bottom of the loop is 34m/
Explanation:
<u>Given: </u>
Mass=52kg
Force=1750N
To calculate:
The acceleration at the bottom of the loop
<u>Formula:
</u>
Force=Mass x Acceleration
1750=52 x Acceleration
1750/52=Acceleration
Therefore acceleration at the bottom of the loop is 34m/
Roller coasters are mainly based upon acceleration theory they have two types of acceleration one is at the top of the loop and the other is at the bottom of the loop.
Then the net forces and the values are given. In many problems the roller coaster concept is included and it gives another level of clarity to the problems including the net forces