Identify the force acting on the mass that causes the spring to extend

Ben walks 500 meters from his house to the corner store. He then walks back toward his house but stops to talk to a neighbor whe

Black_prince [1.1K]

Answer:0.33 m/s

Explanation:

Given

Ben walks towards corner stone which 500 m from his house

As he walk back he stop to talk his neighbor which is 200 m from corner stone

Average velocity of Ben is given by the ratio of his displacement and total time taken

Displacement of Ben is $=500-200=300\ m$

total time taken by Ben $=910\ s$

$v_{avg}=\frac{displacement}{time}$

$v_{avg}=\frac{300}{910}$

$v_{avg}=0.33\ m/s$

5 0

3 years ago

Read 2 more answers

A cat is moving at 18 m/s when it accelerates at 4 m/s2 for 2 seconds. what is his new velocity?

larisa [96]

Velocity =18
Velocity at 2 seconds=18+4+4=26

8 0

3 years ago

Read 2 more answers

If you lose control of your vehicle and collide with a fixed object, such as a tree, at 60 m.p.h., the force of impact is the sa

My name is Ann [436]

You can compare the velocity of the car, 60 mph, with the velocity that a mass would acquire when falls from certain height.

First, convert 60 mph to m/s:

60 miles/h * 1.60 km/mile * 1000 m/km * 1h/3600s = 26.67 m/s

Second, calculate from what height a body in free fall reachs 26.67 m/s velocity when hits the floor.

free fall => Vf^2 = 2g*H => H = Vf^2 / (2g)

H = (26.67m/s)^2 / (2*9.8 m/s) = 36.2 m

If you consider that the height between the floors of a building is approximately 3.6 m, you get 36.2 m / 3.6 m/floor = 10 floors.

Then, you conclude that the force of impact is the same as driving you vehicle off a 10 story building.

7 0

4 years ago

A pallet of bricks is to be suspended by attaching a rope to it and connecting the other end to a couple of heavy crates on the

SashulF [63]

Answer:

<h3>C.250 lb is the answer...</h3>

5 0

3 years ago

Explain, using numbered steps, how you could find the volume of a small, irregularly shaped rock.

dmitriy555 [2]

1. Get a graduated cylinder. 2. Fill the graduated cylinder to a known amount of water. Record the amount of water in the cylinder. 3. Place rock into the graduated cylinder 4. Measure the new volume of the graduated cylinder with the rock in it. 5. Take the difference of the new volume and the old volume and that is the volume of the rock.

8 0

3 years ago