Answer:
1. 
2. 
3. 
4. α = 59.05°
5. 
6. α = 59.05°
Explanation:
The position of the center of mass 1s before the collision is:

where
;
;
;
;
Replacing these values:


where
;
;
;
;
Replacing these values:

The velocity of their center of mass is:

where
;
;
;
;
Replacing these values:


where
;
;
;
;
Replacing these values:

So, the magnitude of the velocity is:


The angle of the velocity is:


Since on any collision, the velocity of the center of mass is preserved, then the velocity after the collision is the same as the previously calculated value of 16.66m/s at 59.0° due north of east
Answer:
25.71486 seconds
Explanation:
t = Time taken
u = Initial velocity = 60 mph
v = Final velocity = 80 mph
s = Displacement = 0.5 mile
a = Acceleration
Converting to m/s


From equation of motion


Time taken is 25.71486 seconds
Answer:
Mass of the silver will be equal to 46.70 gram
Explanation:
We have given heat required to raise the temperature of silver by 24°C is 269 J , so 
Specific heat of silver = 0.240 J/gram°C
We have to find the mass of silver
We know that heat required is given by
, here m is mass, c is specific heat of silver and
is rise in temperature
So 
m = 46.70 gram
So mass of the silver will be equal to 46.70 gram
Answer:
5.5 m/s^2
Explanation:
I believe this is the answer > using the formula a= v-v0/t
Hope this helps!