A lab cart is loaded with different masses and moved at various constant velocities? the anser should be
1.0m/s → 4kg
<span>D. density is your answer</span>
Answer a would be correct since velocity is a vector and has a magnitude and a direction. In this case v₁ = - v₂.
Lets se
And


So

If spring constant is doubled mass must be doubled
Answer:
The mass of the beam is 0.074 kg
Explanation:
Given;
length of the uniform bar, = 1m = 100 cm
Set up this system with the given mass and support;
0-----------------33cm-----------------------------------100cm
↓ Δ ↓
0.15kg m
Where;
m is mass of the uniform bar
Apply the principle of moment to determine the value of "m"
sum of anticlockwise moment = sum of clockwise moment
0.15kg(33 - 0) = m(100 - 33)
0.15(33) = m(67)

Therefore, the mass of the beam is 0.074 kg