Answer:
100 N force have to lift for the board to be carried
Explanation:
Given data
L = 3.00 m
F1 = 60.0 N
w = 160 N
to find out
magnitude F2 of force
solution
we know that F1 and F2 sum is equal to weight of board
so that we can say
F1 + F2 = W
so
F2 = W - F1
put the value W and F1
F2 = 160 - 60
F2 = 100 N
so 100 N force have to lift for the board to be carried
This feather weighs heavier on earth than on Mars hence it is better that the feather falls on you in Mars than on earth.
<h3>What is weight?</h3>
The term weight refers to the effect of the gravitational pull on an object. The acceleration due to gravity on earth is about 9.8m/s^2. The weight of this feather on earth is about 4.80 Kg * 9.8m/s^2 = 47 N
On the planet Mars, the weight is;
4.80 Kg * (0.38 * 9.8m/s^2) = 18 N
This feather weighs heavier on earth than on Mars hence it is better that the feather falls on you in Mars than on earth.
Learn more about gravity:brainly.com/question/4014727
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Answer:
Given: velocity from ( vovo ) 10 m/s to ( vfvf ) 15 m/s after traveling(d) 5 meters.
Use of this equation:
v2f=v2o−2⋅a⋅dvf2=vo2−2⋅a⋅d
152=102+2⋅a⋅5152=102+2⋅a⋅5
225 = 100 + 10a
125 = 10a
a = 12.5 m/s 22
Answer:
the car’s final displacement is 60 m
Explanation:
Given;
initail velocity of the car, u = 0
acceleration of the car, a = 0.8 m/s²
time of motion, t = 10 s
The first displacement of the car:
The second displacement of the car;
acceleration, a = 0.4 m/s², time of motion, t = 10 s
The final displacement of the car;
x = x₁ + x₂
x = 40 m + 20 m
x = 60 m
Therefore, the car’s final displacement is 60 m
The silver substance is most likely a metal. Your answer is A.