Acceleration = change in velocity/change in time
So you should have (20-10)/(0-2)= -10/2 = -5
So your answer is -5
D.very small amounts of mass.
Answer:
v=2.9578 m/s
Explanation:
t= 1407.6 hr
t = 3600 * 1407.6 = 5067360 s
w = 2π/T
=2π/5067360
w = 1.24 x 10^-6 rad/s
v = r*w
v = 2.9758 m/s
Answer:
Explanation:
On the rod , three forces are acting .
1 ) its weight from the middle point .
2 ) Tension in the wire in the horizontal direction
3 ) reaction force by the hinge which balances the other two forces
Now taking moment of forces acting on the rod about the hinge
and equating opposite moment
3.7 x 9.8 x .6 x cos 25 = T x .51 ( T is tension in the horizontal wire)
T = 38.6 N
a )
The horizontal component of the force exerted on the rod by the hinge
will balance the tension in the wire acting in horizontal direction so it will be equal to
38.6 N
b ) The vertical component of the force exerted on the rod by the hinge
will balance the weight of rod so it will be equal to
3.7 x 9.8 N
= 36.26. N
=
Answer:
if 1 light year was one millimeter then 105,700 light years = 105,700 mm, (or 105.7 meters in case you needed to simplify or something)
