Accelerator problem

I have a question. By thoroughly accelerating my car (Renault Clio)
I feel that the pedal becomes very hard, the engine accelerates but the car not to be due? thank you.

When it accelerates thoroughly and the engine rises from revolutions normally but the car does not respond in the same way, it is likely that it is due to clutch wear. Route tests can be done to determine it, especially if you start in an steep climb and the engine accelerates but the car does not move as it should.

I agree with Pauloai but explain a little better the problem that the car gives you and at what time it does to you