I don’t rly get ur question
Answer:
a) a = 3.29 m/s²
b) a = 3.51 m/s²
Explanation:
mass of dogs = 19 kg
loaded sled mass = 210 Kg
a)writing all the forces in x direction

a = 3.29 m/s²
b) acceleration when sled start to move the friction will now be acting will be kinetic friction.

a = 3.51 m/s²
Given:
Shaft Power, P = 7.46 kW = 7460 W
Speed, N = 1200 rpm
Shearing stress of shaft,
= 30 MPa
Shearing stress of key,
= 240 MPa
width of key, w = 
d is shaft diameter
Solution:
Torque, T = 
where,

= 59.365 N-m
Now,


d = 0.0216 m
Now,
w =
=
= 5.4 mm
Now, for shear stress in key
= 
we know that
T =
= F. 
⇒
= 
⇒
= 
length of the rectangular key, l = 4.078 mm
Answer:Smaller Than the object and right-side up
Explanation:
Circular motion is what an object has if it is moving around and around and around and around and around and around and around and around and around in a path that is a circle.