Hi @Karansinh
The issue that you are encountering, where the ramp lifts before dropping is likely caused by inertial effects during the sliding motion of the base. Kindly refer the following workarounds to fix this.
1. Constrain the Sliding Motion Properly
Make sure the sliding body (to which the ramp is attached) is connected to the ground using a 'Prismatic Joint'. This will limit its movement to a straight line (e.g., along the X-axis) and prevent unexpected motions in other directions.
2. Model the Ramp Hinge correctly
Connect the ramp to the sliding body using a 'Revolute Joint' at one end. This joint should allow the ramp to rotate freely due to gravity. Do not apply any torque or motion input to this joint, gravity should be the only driver.
3. Tune Mass and Inertia
Ensure both the ramp and the sliding body have realistic 'mass' and 'inertia' values. If these are too small, the ramp can behave erratically and lift off due to the sliding body's acceleration.
For more information regarding 'prismatic' and 'revolute' joints, kindly refer the following documentations -
I hope this helps.
