Answer:
(a) W= 44N
(b)W= 31.65 N
Explanation:
Data
T=44 N : Maximum force that the rope can withstand without breaking
Newton's second law:
∑F = m*a Formula (1)
∑F : algebraic sum of the forces in Newton (N)
m : mass in kilograms (kg)
a : acceleration in meters over second square (m/s²)
(a) We apply the formula (1) at constant speed , then, a=0
W: heaviest fish that can be pulled up vertically
∑F = 0
T-W =0
W = T
W= 44N
(b) We apply the formula (1) , a= 1.26 m/s²
W: heaviest fish that can be pulled up vertically
W= m*g
m= W/g
g= 9.8 m/s² : acceleration due to gravity
∑F = 0
T-W = m*a
T= W+(W/g)*a
44=W*(1+1/9.8)* (1.26 )
44= W* 1.39
W= 44/1.39
W= 31.65 N
C : perpendicular
The component of a vector are perpendicular
Answer:
Answer:B
Explanation:
Because it all stayed consistant
Explanation :
The spherical mirrors are of two types i.e. concave mirror and the convex mirror.
The mirror whose reflecting surface bulges inwards are called concave mirrors. It is also known as converging mirror. Th attached figure shows a concave mirror.
The image formed by concave mirror is real inverted. There is only one case when the formed image is virtual and erect when the object is placed in between the pole and the focus.