How do I find acceleration and tension on an inclined plane

[ivan ripalda]

Homework Statement

Two objects of 2.8kg and 4.2kg are connected by an inextensible cord. The object's at rest on a plane inclined 22°, determine the object's acceleration and tension in the cord if a 60N force is used to push the object downward.

Homework Equations

ΣFnet = ma

the plane is frictionless.

The Attempt at a Solution

a = Σfnet/m
a= weight + F/m
a = -25.70N - 60N / 7kg
a = - 12.24

weight - F -T = ma
T = tension[/B]

 

[scottdave]

Welcome to PhysicsForums. The way that this site works for homework problems: you provide your attempt at a solution, then we will provide prompts to help guide you toward the solution. Please add what attempts you have made at a solution.

Hint: it will help you to draw a free body diagram for each object.