No, time dilation caused by gravity is not directly similar to the experience of feeling slowed down when jumping in a gravitational field.
When you jump in a gravitational field, such as on Earth, you experience a force pulling you downward, which is gravity. This force affects your motion, making it more difficult to jump higher or move against the force of gravity. You feel the resistance of gravity as you try to overcome it.
On the other hand, time dilation due to gravity is a phenomenon related to the flow of time itself. It is not a physical force that directly affects your motion or slows you down in a tangible sense. Instead, time dilation refers to the relative difference in the passage of time between two observers in different gravitational fields.
In the presence of a stronger gravitational field, time runs slower relative to a weaker gravitational field. This means that clocks closer to a massive object, such as a planet or a black hole, tick more slowly compared to clocks farther away. However, this time dilation effect does not manifest as a physical resistance or slowing down of an object's motion.
While both gravity and time dilation are consequences of the curvature of spacetime caused by mass, they have distinct effects on different aspects of the physical world. Gravity influences the motion of objects, whereas time dilation affects the passage of time itself, leading to different rates of time flow depending on the strength of the gravitational field.