Calculate the work done by applying a 125 N force to the right on a 65.0 kg sled to displace

A green truck is moving to the right. A red truck is moving to the left with a speed of 6 m/s. The mass of the red truck is 1,00

Contact [7]

Answer:

2 m/s

Explanation:

$m_1$ = Mass of red truck = 1000 kg

$m_2$ = Mass of green truck= 3000 kg

$u_1$ = Initial Velocity of red truck = 6 m/s

$u_2$ = Initial Velocity of green truck

$v$ = Velocity with which they move together = 0

For elastic collision

$m_1u_1 + m_2u_2 =(m_1 + m_2)v\\\Rightarrow m_1u_1 + m_2u_2 =0\\\Rightarrow m_1u_1 + m_2u_2 =(m_1 + m_2)v\\\Rightarrow m_1u_1 + m_2u_2 =0\\\Rightarrow u_2=-\frac{m_1u_1}{m_2}\\\Rightarrow u_2=-\frac{1000\times 6}{3000}\\\Rightarrow u_2=-2\ m/s$

Velocity of the green truck is 2 m/s

8 0

3 years ago

The elememt sodium (Na) is a ?

luda_lava [24]

It is a very reactive metal with 11 protons ,12 neutrons, 11 electrons, and 1 valence electron

3 0

3 years ago

Read 2 more answers

A long, straight, horizontal wire carries current toward the east. A proton moves toward the east alongside and just south of th

kondor19780726 [428]

Answer:

north direction.

Explanation:

The wire carries a current towards the east . The magnetic field will make circular path around the wire in clockwise direction so at a point just south of wire , magnetic field will be into the plane of paper containing wire. If we take east as x -axes , north as y axes then out of plane will form z axes. Hence direction of magnetic field will be - z direction .

Magnetic field can be represented as - B k

Proton is moving towards east ie in + x direction so it can be represented as follows

velocity = V i

Force F = q( V i x -B k)

= ( BqV) j or + ve j direction or along north direction

So direction of force will be along north direction.

4 0

3 years ago

The road study guide what does the man look for with his binoculars

galben [10]

In the story, The Road, the man is looking for food and supplies with his binoculars. There is a boy that is traveling with the man and they are starving. They continue traveling until they see a big house and they enter it to look for food.

3 0

3 years ago

Someone help please 1 You are cycling along a flat road. a Are you moving up or down? b What is the force that is pulling you

9966 [12]

Answer:

$\gamma \: 1a. \: i \: am \: moving \: downwards \: . \\ b. \: gravity \: is \: pulling \: me \: downwards \: \\ c. \: the \: force \: is \: acting \: downwards \: \\ the \: answer \: to \: the \: question \: c \: is \: downwars \: because \: its \: easy \: to \: pull \: the \: bike \: downwards \: but \: its \: hard \: to \: pull \: the \: bike \: upwards \: it \: would \: take \: more \: energy \: \gamma \\ \\$

Explanation:

<h3> $\infty \infty \: hope \: it \: helps \: you \: \\ have \: a \: good \: a \: day \: .$ </h3>

Slide my answer to see the full answer .

7 0

3 years ago