1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
butalik [34]
3 years ago
13

A fisherman is fishing from a bridge and is using a "50.0-N test line." In other words, the line will sustain a maximum force of

50.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in (a) at constant speed and (b) with an acceleration whose magnitude is 2.98 m/s2?
Physics
1 answer:
umka21 [38]3 years ago
7 0

Answer:(a) 50 N

(b)38.34 N

Explanation:

Given

Maximum tension(T) in line 50 N

(a)If line is moving up with constant velocity i.e. there is no acceleration

This will happen when Tension is equal to weight of Fish

T-mg=0

T=mg

Maximum weight in this case will be 50 N

(b)acceleration of magnitude 2.98 m/s^2

T-mg=ma

50=m\left ( g+a\right )

50=m\left ( 12.78\right )

m=3.91

Therefore weight is 3.91\times 9.8=38.34 N

You might be interested in
The process in  which water ice wind and gravity drop newly formed sedinments is called
zhannawk [14.2K]
It's called sedimentation. And erosion is when the rock is worn away by the water, and wind and becomes sediment. 
4 0
3 years ago
Read 2 more answers
A 3 kg drone starts at 5 meter above the ground and reached 25 meter above the
docker41 [41]
Recall that work is the amount of energy transferred to an object when it experiences a displacement and is acted upon by an external force. It is given a symbol of W and is measured in joules (J).

W=\vec{F}\cdot \Delta \vec{d}

We can use this formula to determine the work done by very specific forces, generating specific types of energy. We will examine three types of energy in this activity: gravitational potential, kinetic, and thermal. Before we start deriving equations for gravitational potential energy and kinetic energy, we should note that since work is the transfer and/or transformation of energy, we can also write its symbol as \Delta E.
4 0
2 years ago
Is there ever a situation where an ant will have more momentum than an elephant? Explain why or why not?
Mariulka [41]

Answer:

Yes

Explanation:

The momentum of an object is given by:

p=mv

where

m is the mass of the object

v is the velocity of the object

We know that an elephant has a mass much larger than the mass of an ant. However, we see that the momentum of the animal also depends on its velocity.

If the elephant is at rest, its velocity is zero:

v = 0

so its momentum is also zero:

p = 0

And therefore, an ant which is moving (so, non-zero speed) can have more momentum than an elephant, if the elephant is at rest.

6 0
3 years ago
A 2-kg object is moving horizontally across a frictionless surface with a speed of 4 m/s. How much force is required to keep the
FinnZ [79.3K]

Answer:

  none

Explanation:

Newton's first law says an object in motion will stay in motion at the same speed and direction unless acted upon by some force.

No force is necessary for the object to keep its speed and direction on a frictionless surface.

8 0
3 years ago
A boy of mass 60 kg runs up a staircase of 50 steps in 10s. If height of each steps is 12 cm,find the power
Alenkasestr [34]

Answer:

350 W

Explanation:

50 steps × 0.12 m/step = 6 m

Power = work / time

P = mgh / t

P = (60 kg) (9.8 m/s²) (6 m) / 10 s

P = 352.8 W

Rounding to two significant figures, the power is 350 W.

3 0
3 years ago
Other questions:
  • If two balls collide with each other, they will move apart at the same speed if
    15·2 answers
  • Why does the moon have a layer of powdery "soil" on its surface?
    12·2 answers
  • A person in bare feet is standing under a tree during a thunderstorm, seeking shelter from the rain. A lightning strike hits the
    15·1 answer
  • If a net force of 25 N is exerted over a distance of 4 m to the right on a 2 kg mass initially at rest and moves it, what is the
    11·1 answer
  • You create a plot of voltage (in V) vs. time (in s) for an RC circuit as the capacitor is charging, where V=V_{0} \cdot \left(1-
    11·1 answer
  • A chair of weight 125 N lies atop a horizontal floor; the floor is not frictionless. You push on the chair with a force of F = 3
    15·1 answer
  • 3 characteristics of chemical change
    15·2 answers
  • When ___ attacks the surface of a metal, it becomes tarnished.​
    10·2 answers
  • The motor of a washing machine rotates with a period of 28 ms. What is the angular speed, in units of rad/s?
    8·1 answer
  • which planet should punch travel to if his goal is to weigh in at 118 lb? refer to the table of planetary masses and radii given
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!