The braking problem is almost certainly a disk brake rotor. The vibration could be a faulty tire, a bent or damaged "half shaft" or an out of balance tire. Front end vibration is not caused by an alignment problem, but can be accentuated by worn suspension or steering components.
Get you front end aligned, that should take care of the shakes.
Check the air pressure in your tires
Your front tires are defective. Its time to replaced them.
Most likely your alignment is out of whack or bad struts. Could also be the wheels need balancing.
u need to balance your front wheels at a local tire shop.
Probably a wheel balance problem or possibly a bent rim.
50mph = 80.47kmh
The speed is still 50mph, no matter the distance measured...
No,it is not.
80.4 kph
50mph
It was 50mph