Answer:
Answer:
New speed of the 22-kg block is 1.57 m/s
Explanation:
Mass of block
Mass of another block
Initial speed of the block
Initial speed of the another block
Initial speed of the another block
For conservation of momentum, we have
Substitute all the values and solving for final speed of the 22kg block is
new speed of the 22-kg block is 1.57 m/s
Couldnt write the answer so check picture
Answer:
Afforestation is the planting or adding of trees in an area where there was never a forest or plantation. This is a method to create a new forest. Reforestation is the replanting of trees in an area where there was once a forest which was destroyed or damaged.
Explanation:
73 Newton is the correct answer
Answer:
a) 282.8 m/s
b) 13812 revolutions
Explanation:
a) The aceleration(a) is the angular velocity(w) divide by the time. The disk had cosated for 12 s in a constant angular velocity, so it will be:
a = w/t
610 = w/12
w = 7230 rad/s
The angular velocity is related by the linear velocity:
V = w*r, where r is the radius of the circumference ( r = 0.08/2 = 0.04 m)
V = 7230*0.04 = 292.8 m/s
b) The number of revolutions is the frequency (f) of the moviment, which is related to the angular velocity as:
w = 2π*f
f = w/2π
f = 7230/6.28
f = 1151 revolutions/s
So, the total revolutions (n) is 12 s was:
n = 12*1151 = 13812 revolutions
