It is a command, likely followed by an exclamation point.
"Hit the brakes!"
If the rotors are warped it can cause a shake when you hit the brakes.
have your brakes checked
Maybe you hit the brakes by accident?
your alternator might be on the way out.
Well, clearly you stop...
hit the brakes....
no
It helps hit the brakes sooner so you don't crash or hit something in case you don't hit the brakes in time or you are sleepy/overdosed in alcohol/losing attention/etc or something.
The 1997 Chevrolet Silverado rear brakes should automatically adjust themselves. Every time you back the vehicle up and hit the brakes the brakes adjust.
YES THE VALVES WILL HIT THE PISTONS IF TIMING BELT JUMPS OR BRAKES YES THE VALVES WILL HIT THE PISTONS IF TIMING BELT JUMPS OR BRAKES
It's probably a loose suspension or brake component and the axle assembly is shifting slightly when you hit the brakes. I'd have to hear it to be sure.
it could be your head gasket