An object pulled to the right by two forces has an acceleration of 2.5 m/s2. The free-body diagram shows the forces acting on th
e object. What is the weight of the object? 50 N 98 N 313 N 490 N
1 answer:
Answer:
The weight of the object is 490 N.
Explanation:
The two forces, F1 and F2 acting upon the object in the horizontal direction are shown in the image attached.
We know that the net force acting upon the body is the sum of all the forces acting upon it and is given as:
Net Force = F1 + F2
m*a = F1 + F2
Acceleration to the right is = 2.5 m/s²
m*(2.5) = 50 + 75
m = 125/2.5
m = 50 kg
Now, weight of an object = mg
W = mg where g is gravitational acceleration given as g = 9.8 m/s²
W = 50*9.8
W = 490 N
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Answer:
2.73414 seconds
467622.66798 J
Explanation:
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
g = Acceleration due to gravity = 9.81 m/s² = a
or
The time taken is 2.73414 seconds
The potential energy is given by
The change in potential energy is 467622.66798 J