Respuesta :
(a) The force diagram of a coaster sitting under a cup of coffee includes the weight of the coater plus the weight of coffee acting downwards.
(b) The force diagram of a car slowing down as it approaches a stop sign includes force of the car and frictional force opposing the motion.
(c) The force diagram includes the force of the test and action of the fridge which are eqaul and opposite.
(d) The force diagram of baseball before it leaves the bat incudes only the weight of the baseball acting downwards.
Force diagram of coaster sitting under a cup of coffee
The force diagram of a coaster sitting under a cup of coffee includes the weight of the coater plus the weight of coffee acting downwards.
↑ Fn
Ф Fn = W
↓ W
Where;
- W is weight of the coaster plus weight of coffe
- Fn is the normal reaction
Force diagram of a car slowing down as it approaches a stop sign
The force diagram inlcudes the applied force and frictional force opposing the motion.
Ff ← Ф → F
where;
- Ff is the kinetic frictional force
- F is force of the car
Force diagram of test stuck to your fridge
The force diagram includes the force of the test and action of the fridge which are eqaul and opposite.
Fb ← Ф → Fa
where;
- Fa is the force of the test
- Fb is the force of the fridge
Force diagram of baseball before it leaves the bat
The force diagram includes only the weight of the baseball acting downwards.
Ф
↓
W = mg
Learn more about force diagrams here: https://brainly.com/question/3624253