An excited hydrogen atom releases an electromagnetic wave to return to its normal state. You use your futuristic dual electric/m
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1) weight of the box: 980 N
The weight of the box is given by:
where m=100.0 kg is the mass of the box, and is the acceleration due to gravity. Substituting in the formula, we find
2) Normal force: 630 N
The magnitude of the normal force is equal to the component of the weight which is perpendicular to the ramp, which is given by
where W is the weight of the box, calculated in the previous step, and is the angle of the ramp. Substituting, we find
3) Acceleration:
The acceleration of the box along the ramp is equal to the component of the acceleration of gravity parallel to the ramp, which is given by
Substituting, we find
Explanation:
It is given that,
Mass of bumper car, m₁ = 202 kg
Initial speed of the bumper car, u₁ = 8.5 m/s
Mass of the other car, m₂ = 355 kg
Initial velocity of the other car is 0 as it at rest, u₂ = 0
Final velocity of the other car after collision, v₂ = 5.8 m/s
Let p₁ is momentum of of 202 kg car, p₁ = m₁v₁
Using the conservation of linear momentum as :
p₁ = m₁v₁ = -342 kg-m/s
So, the momentum of the 202 kg car afterwards is 342 kg-m/s. Hence, this is the required solution.
B. velocity at position x, velocity at position x=0, position x, and the original position
In the equation
=
+2 a x (x - x₀)
= velocity at position "x"
= velocity at position "x = 0 "
x = final position
= initial position of the object at the start of the motion