A block slides down a frictionless incline kept on the floor of a chamber . Find the acceleration of the block relative to the incline when the chamber is carried by a helicopter with upward acceleration a at inclination theta with the vertical . Consider the special cases when theta = 0 ^(@) and theta = 90^(@) . The inclination of the plane is 90^(@) - alpha to the vertical in the same sense as theta .

A block slides down a frictionless incline kept on the floor of a cham

1.	A block slides down a frictionless incline kept on the floor of a chamber . Find the acceleration of the block relative to the incline when the chamber is carried by a helicopter with upward acceleration a at inclination theta with the vertical . Consider the special cases when theta = 0 ^(@) and theta = 90^(@) . The inclination of the plane is 90^(@) - alpha to the vertical in the same sense as theta .
Answer» Answer :`a_("down") = g "SIN" ALPHA + a "sin"(THETA + alpha) , a_("down") = g "sin" alpha + a "COS" alpha`