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
nalin [4]
3 years ago
6

A man with a weight of 550 N climbs a ladder to a height of 3.5m. How much work did he do?

Physics
1 answer:
Natasha2012 [34]3 years ago
7 0

Answer: 1925 joules

Explanation:

weight of man = 550 N

height climbed = 3.5m

Work = ?

Since, work is done when the man pulled his weight over the height; work is expressed as the product of weight and height climbed

i.e Workdone = 550N x 3.5m

= 1925 joules

Thus, the man did a work of 1925 joules while climbing

You might be interested in
A and B, move toward one another. Object A has twice the mass and half the speed of object B. Which of the following describes t
BARSIC [14]

Answer:D

Explanation:

Given

mass of A is twice the mass of B half the velocity of B

Suppose F_a and F_b be the average force exerted on A and B respectively

and According to Newton third law of motion Force on the body A is equal to Force on body B but opposite in direction as they are action and reaction force.

Thus F_a=-F_b  and option d is correct

4 0
3 years ago
Calculate the force necessary to accelerate a 10 kg table from<br> O m/s to 4 m/s in 2 seconds.
yanalaym [24]

Answer:

a= v/t

a = 4/2

a = 2 m/s^2

And F = M a

F = 10 × 2

F = 20 N

6 0
3 years ago
Help please? I don’t know this
ohaa [14]

Answer:

Gas giants rotate faster than those of earth .

4 0
2 years ago
According to thomas gage's spies, in which town had the minutemen been collecting a large amount of arms?
Citrus2011 [14]
The correct answer for the given question above would be option B. CONCORD. According to Thomas Gage's spies, the town in which the minutemen had been collecting a large amount of arms is in Concord. The minutemen are civilian colonists who established an independent organization forming a <span> well-</span><span>prepared militia. Hope this answers your question.</span>
7 0
3 years ago
Read 2 more answers
A bus accelerates to 60 m/s to the east in 10 s. What is the buses acceleration? 2. A car traveling at 10.0 m/s to the west acce
professor190 [17]

Answers:

1) a=6\frac{m}{s^{2}}

2) t=8s

Explanation:

1) Acceleration a is defined as the variation of Velocity V in time t :  

a=\frac{V}{t}  (1)

A body also has acceleration when it changes its direction.

In this case we have a bus with a velocity of 60m/s to the east, that accelerates in a time 10s. So, we have to find the bus's acceleration:

a=\frac{60m/s}{10s}  (2)

a=6m/s^{2}  (3)  This is the bus's accelerration

2) Now we have a car that accelerates 2m/s^{2}  to the west in order to reach a speed of 16m/s in the same direction, and we have to find the time t it takes to the car to reach that velocity.

Therefore we have to find  t from (1):

t=\frac{V}{a}  (4)

t=\frac{16m/s}{2m/s^{2}}  (5)

Finally:

t=8s  (6)

3 0
3 years ago
Other questions:
  • Given the units of force, write a simple equation relating a constant force Fexerted on an object, an interval of time t during
    7·1 answer
  • Choose the most acidic substance in the group.
    8·2 answers
  • A lever is placed on a fulcrum. A rock is placed on the right end of the lever and a downward (counterclockwise) force is applie
    10·1 answer
  • Some of this energy is converted into thermal energy due to wind resistance, a form of
    15·1 answer
  • Explain why some objects fall faster than other objects,
    12·1 answer
  • A stone is dropped from the bridge, it takes 4s to reach the water. what's the height of the bridge?​
    10·2 answers
  • The rate at which velocity changes is called
    11·1 answer
  • How much work does a motor do as it lifts a 675-kilogram elevator from a height of 15 meters to a height of 35 meters?
    12·1 answer
  • Two for are at an angle at 120 ,the bigger forces is 40N and the resultant is perpendicular to the smaller one. find the smaller
    15·1 answer
  • Which of the following is a service performed by local government?<br> I
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!