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
TEA [102]
3 years ago
6

A cannonball of mass 15 kg is fired vertically upward from a cannon with an initial speed of 20 m/s. The cannonball travels upwa

rd, reaches a maximum height of 40 m, and returns to the ground. Now you decide to shoot a 30 kg cannonball vertically upward using the same cannon. If we assume that all cannonballs leave this cannon with an initial speed of 20 m/s, what maximum height does the 30 kg cannonball reach
Physics
1 answer:
NemiM [27]3 years ago
8 0

Answer:

30kg ball will have equal traveling height with the 15kg

Explanation:

When air resistance is negligible, the mass of the object does not affect the maximum height or the time spent in the air.

So if mass does not affect traveling height when sir resistance is neglected...the 30kg ball will have equal traveling height with the 15kg ball provided they have equall velocities and equal angle if projection.

In this case it has 20 m/s and they are all projected vertically.

You might be interested in
What is not a factor affecting impact in a collision; vehicle weight, speed, kinetic energy, centrifugal force
navik [9.2K]
I believe the answer is vehicle weight
6 0
3 years ago
Which statement is a scientific theory?
Dmitry [639]

Answer:

I think it  is D

Explanation:

7 0
3 years ago
Read 2 more answers
What is a substance?
Anna007 [38]

Answer:

A physical matter

Explanation:

A kind of matter with uniform physical properties

3 0
3 years ago
Find the hiker’s gravitational potential energy if the cliff is 60m high
Furkat [3]

Answer:

Potential energy is U=mgh

Explanation:

The potential energy depends on the mass, the acceleration of gravity g and the height at which the object or person is.

Potential energy  U=mgh

In this case we would need to know the exact mass of the hiker in order to calculate the potential energy.

But we know the values of g and h

g=9.81m/s^2

h=60m

So, the potential energy

U=m(9.81m/s^2)(60m)\\\\U=588.6*m

m is the mass of the hiker, wich is not in the description of the problem.

4 0
3 years ago
Listen →
Sedaia [141]

Answer:

V = 20.5 m/s

Explanation:

Given,

The mass of the cart, m = 6 Kg

The initial speed of the cart, u = 4 m/s

The acceleration of the cart, a = 0.5 m/s²

The time interval of the cart, t = 30 s

The final velocity of the cart is given by the first equation of motion

                              v = u + at

                                  = 4 + (0.5 x 30)

                                = 19 m/s

Hence the final velocity of cart at 30 seconds is, v = 19 m/s

The speed of the cart at the end of  3 seconds

                                    V = 19 + (0.5 x 3)

                                       = 20.5 m/s

Hence, the final velocity of the cart at the end of this 3.0 second interval is, V = 20.5 m/s

6 0
3 years ago
Other questions:
  • A cyclist maintains a constant velocity of 5 m/s headed away from point A. At some initial time, the cyclist is 247 m from point
    5·1 answer
  • There are two types of waves, mechanical and electromagnetic. Microwaves, infrared, and radio was are examples of electromagneti
    13·1 answer
  • Given 368172 hours, convert to days.
    7·1 answer
  • A mailman performed 296 J of work lifting a box of 1.6 m. How much force did the mailman use?
    5·1 answer
  • What is a measure of the pulling force of gravity?
    15·1 answer
  • A motor exerts a 280 N force and does 1220 J
    9·1 answer
  • A body at rest will remain at rest unless acted on by a(an) _____.
    9·1 answer
  • Convert 0.0779 kg to g
    11·1 answer
  • Nvhfbvhefvhabjbnvjhhjaqiuv.....
    10·1 answer
  • A hovercraft is being driven across a lake on a very windy day. The wind exerts a force of 5000 N north on the hovercraft. The p
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!