Answer this as soon as you can! !
the µs between two objects is 0.3 the larger object is in motion at 15 km/h.
what is the maximum possible acceleration the moving object can experience without the other object on it sliding off? m/s^2 (no decimals)
i'm really stuck on this and could use some .
edit: this is supposed to be in high school, not middle school. how do i fix this?

Amerry-go-round of radius r, shown in the figure, is rotating at constant angular speed. the friction in its bearings is so small that it can be ignored. a sandbag of mass m is dropped onto the merry-go-round, at a position designated by r. the sandbag does not slip or roll upon contact with the merry-go-round. how would you rank the following different combinations of m and r on the basis of the angular speed of the merry-go-round after the sandbag "sticks" to the merry-go-round from largest to smallest. a) m = 10kg, r = 0.25r b) m = 20kg, r = 0.25r c) m = 10kg, r = 0.50r d) m = 10kg, r = 1.0r e) m = 15kg, r = 0.75r f) m = 40kg, r = 0.25r