What type of drawing is shown in the figure?
Answer:
Hi, There! My Answer would Be A. Block diagram Or C. panel Diagram!
Hope this helps! ♚♛♕♔ッ✨♚
A car initially contains just its driver. The combined mass of car and driver is 869 kg. When the gas pedal is pushed down all t
1 answer:
Answer:
4.2 m/s²
Explanation:
m = combined mass of car and driver = 869 kg
a = maximum acceleration reached by the car with driver in it = 5.6 m/s²
Force provided by the engine is given as
= ma
= (869) (5.6)
= 4866.4 N
M = Combined mass of car, driver and his three friends = 869 + 300 = 1169 kg
a' = maximum acceleration reached with friends in the car = ?
Force provided by the engine remains same and is then given as
= M a'
4866.4 = (1169) a'
a' = 4.2 m/s²
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The chair does not move along the vertical direction: this means that the net force on the vertical direction is zero.
There are three forces acting along the vertical direction:
- The weight, acting downward:
- The component of the force F perpendicular to the floor, acting downward:
- The normal force N, acting upwards.
Since the net force must be zero, we have:
From which we can find the value of N:
Answer:
C. Your mass is very small compared to Earth's mass.
Explanation:
Newton's third law of motion states that:
"When an object A exerts a force (action force) on an object B, object B exerts an equal and opposite force (reaction force) on object A".
If we apply this law to the situation described in the problem, we see that:
- The action force is the gravitational force exerted by the Earth on you
- The reaction force is the gravitational force exerted by you on the Earth
And according to the 3rd law, the magnitude of the two forces is equal:
(1)
We also know that, according to Newton's second law of motion, the force on an object is equal to the product between its mass (m) and its acceleration (a):
So we can rewrite (1) as
where
m is the your mass
a is your acceleration
M is the Earth's mass
A is the Earth's acceleration
For the term on the left, we see that m is small, so a is larger (therefore, your acceleration is visible). However, for the term on the right, we see that the mass of the Earth is very large (M is very large), therefore, A is very small, which means that the acceleration of the Earth is almost negligible because the Earth's mass is very large.