A 3.6 kg object hangs at one end of a rope that is attached to a support on a railroad boxcar. When the car accelerates to the right, the rope makes

A 3.6 kg object hangs at one end of a rope thatis attached to a support on a railroad boxcar.When the car accelerates to the right, therope makes an angle of 45◦ with the verticalThe acceleration of gravity is 9.8 m/s2 . Find the acceleration