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
notsponge [240]
3 years ago
14

A pirate ship shoots a cannon towards an oncoming ship. The cannon ball has a mass of 25 kg and the ship has a mass of 2500 kg.

If the pirate ship experiences a small recoil velocity of 0.25 m/s. How fast is the cannon ball traveling? Enter your answer below. If you show your work there is the possibility for partial credit.
Physics
1 answer:
mars1129 [50]3 years ago
3 0

Answer:

25 m/s in the opposite direction with the ship recoil velocity.

Explanation:

Assume the ship recoil velocity and velocity of the cannon ball aligns. By the law of momentum conservation, the momentum is conserved before and after the shooting. Before the shooting, the total momentum is 0 due to system is at rest. Therefore, the total momentum after the shooting must also be 0:

m_sv_s + m_bv_b = 0

where m_s = 2500 kg, m_b = 25 kg are masses of the ship and ball respectively. v_s = 0.25 m/s, v_b are the velocities of the ship and ball respectively, after the shooting.

2500*0.25 + 25*v_b = 0

25v_b = -2500*0.25

v_b = -2500*0.25/25 = -25 m/s

So the cannon ball has a velocity of 25 m/s in the opposite direction with the ship recoil velocity.

You might be interested in
What do you understand by upthrust Force​
Sedaia [141]

Answer:

hope you like it

Explanation:

An object that is partly, or completely, submerged experiences a greater pressure on its bottom surface than on its top surface. This causes a resultant force upwards. This force is called upthrust . The upthrust force is equal in size to the weight of the fluid displaced by the object.

Buoyancy or upthrust, is an upward force exerted by a fluid that opposes the weight of an immersed object.It is the force that pushes an object up. The upthrust, or buoyancy, keeps ships afloat. The upthrust, or buoyancy, keeps swimmers on top of the water.

7 0
3 years ago
A 1000 kg elevator is accelerated upward at a rate of 0.70 m/s2. What is the tension in the cable pulling the elevator upward wh
Masteriza [31]

Answer:

Tension is also known as Force...

and Force is mass× acceleration.

so....1000×0.70=700N

5 0
3 years ago
Read 2 more answers
You are on a train traveling east at speed of 18 m/s with respect to the ground. 1) If you walk east toward the front of the tra
dlinn [17]

Answer:

19.2 m/s

Explanation:

The train is moving at 18 m/s and you are walking in the same direction (east) so the speeds are added

18 + 1.2 = 19.2

If you were walking backwards (west) your velocity with respect to the ground would be

18 - 1.2 = 16.8

8 0
3 years ago
When an object is raised vertically, work is done against __________. What one word completes the sentence?
Rasek [7]
Gravity Gravitational Force of Gravity
7 0
3 years ago
A high-performance sports car can go from 0 to 100 mph in 5.8 s. (Assume the car travels in the positive direction. Indicate the
sasho [114]

Answer: a) 7.71 m/s², b) - 6.67 m/s²

Explanation: first thing to note is that

1 mile = 1609.34

1 hour = 3600s

Hence, 100mph to m/s = (100 × 1609.34)/3600 = 44.71 m/s

Initial velocity (u) = 0, final velocity (v) = 44.71 m/s, t = 5.8s, a = acceleration =?

By using newton's laws of motion

v = u + at

44.71 = 0 + a(5.8)

44.71 = 5.8a

a = 44.71/5.8

a = 7.71 m/s²

Question b)

The car is completing a stop which implies that the car is coming to rest, and when a car is coming to rest, the final velocity (v) is zero.

Hence u = 34 m/s, v = 0, a =?, t = 5.1 s

v = u + at

0 = 34 + a(5.1)

a(5.1) = - 34

a = - 34/5.1

a = - 6.67 m/s².

The negative sign beside the acceleration shows that the body is decelerating

7 0
3 years ago
Other questions:
  • Which of the following is a chemical equation that accurately represents what happens when a sulfur and oxygen are produced from
    5·1 answer
  • Hanging from a horizontal beam are nine simple pendulums of the following lengths:
    10·1 answer
  • What is the ionisation energy of an atom
    15·2 answers
  • ¿Qué características debe tener el movimiento de una persona para que el valor del desplazamiento sea igual al de la distancia r
    7·1 answer
  • A horizontal disk rotates about a vertical axis through its center. Point P is midway between the center and the rim of the disk
    5·1 answer
  • Light of intensity I0 and polarized horizontally passes through three polarizes. The first and third polarizing axes are horizon
    12·1 answer
  • Joule is a SI unit of power <br>Measuring cylinder is used to measure the volume of a liquid<br>​
    9·1 answer
  • How do physicists define velocity?
    5·2 answers
  • What would be the answer for this and how?
    12·1 answer
  • A scientist performs an experiment and asks other scientists around the
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!