The answer is a) -9.8 m/s^2, then momentarily zero, then +9.8 m/s^2, that is because during this kind of movement we have a = g, a acceleration and g acceler. of gravity, from zero of the axis to upward a = -g (a and g are contrary by direction), the can stopes before it falls, it means a = o, and during the free fall a = g (same direction).
A box residing on an inclined plane has following forces:
In the X- direction
Mg sin (theta) = horizontal component of weight of the box
f = Frictional force = uN , u = frictional factor, N= mg
In the Y- direction
upward force = Normal reaction of the box = mg
downward force = mg cos(theta) = vertical component of weight of the box
Answer:
A) 3.11 Hrs
Explanation:
Wave speed is given by the formula
now we will have
now the time taken by the wave to move the distance 560 km is given as
t = 3.11 hours
1. A Medium
2. One of these 4, the refractive index of the medium <span>Choose whichever are on the test.
3. </span>properties and nature of medium, Hope this helps.
