2. Two students are riding in 2 bumper cars at an amusement park as shown in the figure below.250 kg200 kg-15 mTwo students riding in bumper cars at an amusement park.The combined mass of car A and its occupants is 250 kg. The combined mass of car B and itsoccupants is 200 kg. Car A is 15 m away from car B and moving to the right at constant speedof 5 m/s, as shown, when the driver decides to bump into car B, which is at rest.Assuming that the collision was elastic, determine the magnitude of the velocity and thedirection of motion of car B. [5.6 m/s, Rightwards] 3. A truck (375 slugs) was travelling east with an unknown velocity when it entered into ahead-on collision with a car. The car (200 slugs) was initially travelling west with aspeed of 44 ft/sec.The vehicles stuck together in the collision, travelled east for a displacement of 120feet in 4s before coming to rest. Calculate the truck's before collision velocity.[115 ft/sec]Before Collision375slugԱլ=? 44 ft/secTruck200slugCarAt CollisionDisplacement, s =u + vt2After 120ft and 4sFriction4. An aircraft with a weight of 85,000 lbs is towed over a horizontal concrete surface. What forcemust the towing vehicle exert to keep the aircraft rolling? [1,700 lbs]

Answered: Image /qna-images/answer/32eaa2ce-977a-4944-80af-c050c8b7b43c.jpg

2. Two students are riding in 2 bumper cars at an amusement park as shown in the figure below. 250 kg 200 kg F 15 m Two students riding in bumper cars at an amusement park. The combined mass of car A and its occupants is 250 kg. The combined mass of car B and its occupants is 200 kg. Car A is 15 m away from car B and moving to the right at constant speed of 5 m/s, as shown, when the driver decides to bump into car B, which is at rest. Assuming that the collision was elastic, determine the magnitude of the velocity and the direction of motion of car B. [5.6 m/s, Rightwards]

2. Two students are riding in 2 bumper cars at an amusement park as shown in the figure below. 250 kg 200 kg F 15 m Two students riding in bumper cars at an amusement park. The combined mass of car A and its occupants is 250 kg. The combined mass of car B and its occupants is 200 kg. Car A is 15 m away from car B and moving to the right at constant speed of 5 m/s, as shown, when the driver decides to bump into car B, which is at rest. Assuming that the collision was elastic, determine the magnitude of the velocity and the direction of motion of car B. [5.6 m/s, Rightwards]

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

2. Two students are riding in 2 bumper cars at an amusement park as shown in the figure below.
250 kg
200 kg
-15 m
Two students riding in bumper cars at an amusement park.
The combined mass of car A and its occupants is 250 kg. The combined mass of car B and its
occupants is 200 kg. Car A is 15 m away from car B and moving to the right at constant speed
of 5 m/s, as shown, when the driver decides to bump into car B, which is at rest.
Assuming that the collision was elastic, determine the magnitude of the velocity and the
direction of motion of car B. [5.6 m/s, Rightwards]

3. A truck (375 slugs) was travelling east with an unknown velocity when it entered into a
head-on collision with a car. The car (200 slugs) was initially travelling west with a
speed of 44 ft/sec.
The vehicles stuck together in the collision, travelled east for a displacement of 120
feet in 4s before coming to rest. Calculate the truck's before collision velocity.
[115 ft/sec]
Before Collision
375
slug
Ալ=? 44 ft/sec
Truck
200
slug
Car
At Collision
Displacement, s =
u + v
t
2
After 120ft and 4s
Friction
4. An aircraft with a weight of 85,000 lbs is towed over a horizontal concrete surface. What force
must the towing vehicle exert to keep the aircraft rolling? [1,700 lbs]

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