Answer:
The acceleration of the snowball is 0.3125
Explanation:
The initial speed of the snowball up the hill, u = 0
The speed the snowball reaches, v = 5 m/s
The length of the hill, s = 40 m
The equation of motion of the snowball given the above parameters is therefore;
v² = u² + 2·a·s
Where;
a = The acceleration of the snowball
Plugging in the values, we have;
5² = 0² + 2 × a × 40
∴ 2 × 40 × a = 5² = 25
80 × a = 25
a = 25/80 = 5/16
a = The acceleration of the snowball = 5/16 m/s².
The acceleration of the snowball = 5/16 m/s² = 0.3125 m/s² .
Tsunami and water bender those are 2 like avatars
Answer:
a) 
, b) 
, c) 
, d) 
; 
, e) 
Explanation:
a) The net force exerted on the crate is:
The magnitud of the force that the work must apply to the crate is:
b) The work done on the crate due to the external force is:
c) The work done on the crate due to the external force is:
d) The work done on the crate due the normal force is zero, since such force is perpendicular to the motion direction.
And, the work done by gravity is:
e) Lastly, the total work done is:
