I find it interesting reading the Book of Mormon and its claim that a small force, correctly motivated, can beat a far superior force. Armies are aware of this and always present that their army is either unbeatable or doing the right thing, before sending them off to war. The story of the 2,000 stripling warriors (Alma chapter 56) is a classic case.
I have heard cases where a woman has picked up one side of a truck to get her child out, in extreme circumstances. I had a similar experience where a friend of mine lifted the front of a car and dragged another friend out from under it.
I can tell of two amazing personal experiences with this. I was working with some electricians in wiring a 13 story building that was in the process of being built. I was very keen on gaining an apprenticeship with them, so was eager to impress. We had 3 rolls of wire which were on wooden reels that were about 4 1/2 to 5 feet (1 1/2 metres) tall. 3 of us tried to guide them, to some degree, as they were rolled off the truck. We couldn't control the rolling speed, only some attempt at direction. The electrician I was working with that day told me to bring one over to where we were working. There were fragments of brick all over the place and a risen doorway to bring it across. I mentioned this, and that it would be impossible for me to roll it to where we were. I was thinking that with relief as I didn't feel I could roll it anyway with its weight. He said that I would have to pick it up and carry it. I said, how can I lift that?" He pointed to a steel pole and said put it between two of them and carry them over. His matter of fact way of saying it, and my strong desire to please, made me go and do it. Now this solid through steel pole was at least 1 1/4 inches (3 1/2 cm) thick.
By the time I had carried those two reels to him the pole was very bent. I have no idea how heavy that weight was, but I'm no muscle builder, and I had just turned 16-years-old. He also told me to strip a foot (1/3 metre) of wire, which with the wire we were using at the time was well beyond the impossible, yet I also did that for the same reasons.
So the 2 reasons why I could do these impossible actions was the right motivation and the belief that the electrician engendered in making me feel such abilities were typical and expected. Though I found out the next day that wasn't true.
That therefore leads to the question of just how much are we really capable of? It also starts to show the power of faith. The true ability we can rise to is to do that work which our Father in heaven does.