Answer:
6 m/s²
Explanation:
We are given;
- The mass of the block as 6.2 kg
- Horizontal force as 50.9 N
- Frictional force as 13.7 N
We are required to determine the acceleration of the block.
- According to second Newton's Law of motion; Resultant force is directly proportional to the rate of change in linear momentum.
Therefore;
F = Ma , where F is the resultant force, m is the mass and a is the acceleration.
In this case;
Resultant force, F = Horizontal force - friction force
= 50.9 N - 13.7 N
= 37.2 N
Thus;
37.2 N = 6.2 kg × a
Hence;
acceleration, a = 37.2 N ÷ 6.2 kg
= 6 m/s²
Therefore, the acceleration of the block is 6 m/s²
Answer:
≈39.2354 [m]
Explanation:
1) coordinates of the rock 1;
2) coordinates of the rock 2; note, ↑ means, the rock moves up, ↓ means the rock moves down;
3) the required distance.
For more info see the attachment.
D.
The gravitational of a body is possessed by the body due to the virtue of its position.
The formula for gravitational potential energy is,
P.E = mgh joules
Substituting the values
196*9.8*250= 49k
Answer:
K = 109.1 N/m
Explanation:
From the question, the following parameters are given.
Extension e = 55 m
Force F = 6000N
According to Hooke's law,
F = Ke
Where K = spring constant.
Substitute F and e into the formula and make K the subject of formula.
6000 = K × 55
K = 6000/55
K = 109.1 N/m
Therefore, the spring constant of a bungee cord that stretches is 109.1 N/m