Answer
toy begins to slide when the plane is at an angle of 36.0°
at this point the toy has just overcome the static friction


since toy begins to slide

now on comparing




as the body is moving at constant velocity acceleration will be zero
so now,



Bro the picture is too dark I can’t see do it again so I can help you
The first one is A and the second one would be C
Newtons 1st law of motion states that the object will continue to move at its present speed and direction until an outside force acts upon it.
So unless the objects inside the car are restrained, they will continue moving at whatever speed the car is traveling at, even if the car is stopped by a crash.