3 years ago

2. A test reveals that 150 J of work is required to lift an object 3 m at a

Physics

1 answer:

Nuetrik [128]3 years ago

7 0

Answer:

50N

Explanation:

W=Fd

150=F(3)

50N=F

You might be interested in

A 25 kh inductor carries a current of 60 ma. how much energy is stored in this system

IgorLugansk [536]

Energy stored= Li^2/2
=45 W

8 0

3 years ago

If it takes a ball dropped from rest 2.261 s to fall to the ground, from what height H was it released? Express your answer in m

algol [13]

Answer:

Height, H = 25.04 meters

Explanation:

Initially the ball is at rest, u = 0

Time taken to fall to the ground, t = 2.261 s

Let H is the height from which the ball is released. It can be calculated using the second equation of motion as :

$H=ut+\dfrac{1}{2}at^2$

Here, a = g

$H=\dfrac{1}{2}gt^2$

$H=\dfrac{1}{2}\times 9.8\times (2.261)^2$

H = 25.04 meters

So, the ball is released form a height of 25.04 meters. Hence, this is the required solution.

7 0

3 years ago

I don’t understand I need help asap

hammer [34]

For the first question, you got them right, for the two you left blank, initial(beginning) velocity: 2 m/s the final velocity is: 12 m/s

3 0

3 years ago

Consider what happens at the moment when the block leaves the surface of the globe. Which of the following statements are correc

erma4kov [3.2K]

Answer:

Statement 1 and 3 are correct.

Explanation:

1. The mass moves downward, so the net acceleration of the block is straight downward.

2.The mass is sliding through the globe, so only the force of gravity is acting on the mass which pulls it in downward direction. The force of gravity has two components [mg sin∅] and [mg cos∅].

6 0

3 years ago

Read 2 more answers

At what time were the racers at the same position?<br> O 15<br> O 3s<br> O 5s<br> 0 4s

Jlenok [28]

The Answer is:

O 3s

Hope you got it right.

5 0

3 years ago

Read 2 more answers