It sounds like you have some steering linkage loose, ie outer tie rod or other front end wheel component that is loose or bad
Decelerating refers to the act of slowing down or reducing speed. It is the opposite of accelerating, where an object is increasing its speed. Deceleration can be caused by factors such as friction, air resistance, or applying brakes.
The velocity of a car can change by increasing its speed, such as accelerating when pressing the gas pedal, or by decreasing its speed, such as decelerating when applying the brakes.
Using brakes slows your speed.
You are decelerating, and as you do so you are transfering quite a bit of energy to the brakes. That is why brakes can get very hot. The kinetic energy of the moving car is converted to friction on the brake pads.
Because you are decelerating sharply
It depends on the decelerating force applied by the brakes.
Kinda need more information. Is it just when accelerating, or also when idling in drive? Does it only do it at a certain rpm or speed, or when applying brakes?
Applying the brakes.
brakes, or no sun
Shaking when accelerating and braking show a front end issue. Check the lug nuts to make sure your tires are bolted on tight. Check for play in front end components, like the wheel bearings and tie rod ends. While possibly causing the vibration, the front brakes usually only cause a shake when braking.
apply your brakes gently while accelerating at the same time
It would be hard on the brakes and fuel mileage.