Answer is B. According to the equation of motion s = vt + 1/2 at2 Where s is distance covered, v is velocity, a is acceleration and t is time taken. So, by putting all the values, we get s = (20)(5) + 1/2 (3)(5)2 s = 100 + 1/2 (3)(25) s = 100 + 1/2 75 s = 100 + 37.5 s = 137.5 meters
If you are designing a roller coaster that goes upside down, you may consider of course seat belts or something that goes around you to keep yourself safe.
Answer:
The relationship between the initial stored energy and the stored energy after the dielectric is inserted is:
c)
Explanation:
A parallel plate capacitor with that is connected to a voltage source holds a charge of . Then we disconnect the voltage source and keep the charge constant . If we insert a dielectric of between the plates while we keep the charge constant, we found that the potential decreases as:
The capacitance is modified as:
The stored energy without the dielectric is
The stored energy after the dielectric is inserted is:
If we replace in the above equation the values of V and C we get that
Finally
The players acceleration is 3.33 m/s/s
Acceleration= Velocity/Time
A =10/3