Answer:
Answer:
118.4 N
Explanation:
weight of chair, mg = 95 N
Push, F = 39 N
Ф = 37 ° below x axis
Let n be the normal force.
So, by using the diagram and resolve the components of Force F.
n = mg + F SinФ
n = 95 + 39 Sin 37°
n = 95 + 39 x 0.6
n = 118.4 N
Explanation:
Answer:
12.25 meters
Explanation:
s=1/2(v+u)t
s= displacement
v= final velocity
u= initial velocity
t= time
7m/s+0m/s divide by 2= 3.5 m/s velocity Times 3.5 seconds= 12.25 meters
Answer:
v₁ =0.19 m/s and v₂ = 0.18 m/s
Explanation:
By conservation of energy and conservation of momentum we can find the velocity of each object after the collision:
<u>Momentum:</u>
Before (b) = After (a)
(1)
<u>Energy:</u>
Before (b) = After (a)
(2)
<u>From equation (1) we have:</u>
(3)
<u>Now, by entering equation (3) into (2) we have: </u>
(4)
By solving equation (4) for
, we will have two values for
We will take the average of both values:
Now, by introducing this value into equation (3) we can find
:

Therefore, the velocity of object 1 and object 2 after the collision is 0.19 m/s and 0.18 m/s, respectively.
I hope it helps you!
The answer is The Law of Conservation of Energy, hope this helps.
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