This is not that exact but I hope that this will help you.
The effect of gravity is more in liquid than in solid because as we know that liquid pressure increase in the increase in depth but solid dont
The weight of 20 kg is
(mass) x (gravity) =
(20 x 9.8) = 196 newtons, downward.
There must be a force of 196 newtons upward on the mass.
Otherwise the mass is accelerating either up or down.
Answer:
high tension: 4.2 × 1.5 = 6.3 cm/s
medium tension: 2.8 ×1.5 = 4.2 cm/s
low tension: 0.8 × 1.5 = 1.2 cm/s
Explanation: Given Settings:
amplitude: 0.75 cm
damping: zero
Using
Speed = frequency ×wavelength
Where
Wavelength = 0.75 × 2 = 1.5 cm
Therefore:
high tension: 4.2 × 1.5 = 6.3 cm/s
medium tension: 2.8 ×1.5 = 4.2 cm/s
low tension: 0.8 × 1.5 = 1.2 cm/s
Answer:
Explanation:
Given:
Acceleration, a = -2.4 m/s^2
Acceleration due to gravity, g = 9.8 m/s^2
Sum of forces = 0
Fr + F = 0
Fr = µsl × m × g
Since, Fn = m × g
m × a = (- µsl × mg)
µsl = -a/g
= 2.4/9.8
= 0.245