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
Alik [6]
2 years ago
15

How to solve projectile motion problems with angles.

Physics
1 answer:
Deffense [45]2 years ago
7 0

Answer:

R=v2isin2Big R

=v I 2 sin 2 B I g

You might be interested in
How much work is needed to push a 117- kg packing crate a distance of 2.75 m up an inclined plane that makes an angle of 28 o wi
Nataly_w [17]

Answer:

W_{tot,min} = 1481.372\,J

Explanation:

The minimum total work is the work needed to counteract the work associated with the weight:

W_{tot, min} = W_{F}

W_{tot,min} = m\cdot g\cdot \sin \theta \cdot \Delta s

W_{tot,min} = (117\,kg)\cdot (9.807\,\frac{m}{s^{2}} )\cdot (\sin 28^{\textdegree}) \cdot (2.75\,m)

W_{tot,min} = 1481.372\,J

6 0
3 years ago
Read 2 more answers
9- Under what circumstances would a vector have components that are equal in
valkas [14]

Explanation:

c. if the vector is oriented at 0° from the X -axis.

6 0
2 years ago
Two cars are driving on a straight section of the interstate in opposite directions with 70 mph. They are one mile apart.
Mashutka [201]
They are trailing the same speed as it states in the question they are heeding toward each other a 70 mph <span />
5 0
3 years ago
A jet plane lands with a speed of 100 m/s and can
kiruha [24]

Answer:

a) t = 20 [s]

b) Can't land

Explanation:

To solve this problem we must use kinematics equations, it is of great importance to note that when the plane lands it slows down until it reaches rest, ie the final speed will be zero.

a)

v_{f}=v_{i}-(a*t)

where:

Vf = final velocity = 0

Vi = initial velocity = 100 [m/s]

a = desacceleration = 5 [m/s^2]

t = time [s]

Note: the negative sign of the equation means that the aircraft slows down as it stops.

0 = 100 - 5*t

5*t = 100

t = 20 [s]

b)

Now we can find the distance using the following kinematics equation.

x -x_{o}=(v_{o}*t)+\frac{1}{2}*a*t^{2}

x - xo = distance [m]

x -xo = (0*20) + (0.5*5*20^2)

x - xo =  1000 [m]

1000 [m] = 1 [km]

And the runaway is 0.8 [km], therefore the jetplane needs 1 [km] to land. So the jetpalne can't land

4 0
3 years ago
How much heat energy is required to raise the temperature of 5 kilograms of coal from 20°C to 220°C? A. 314 J B. 6,573 J C. 1,31
Vika [28.1K]
Just took the test and the answer is <span>C. 1,314,718.

</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • What was your hypothesis? According to your data, do you think your hypothesis was correct? What is latent heat? How does it sho
    9·2 answers
  • Based on Newton’s prism experiments, what is sunlight made of?
    10·2 answers
  • Why is it important for scientists to share information from their investigation?
    8·1 answer
  • A soccer player hits a ball with a velocity of 22 m/s at an angle of 36.9 above the horizontal. Air resistance can be ignored. a
    14·1 answer
  • Which condition describes an object having terminal velocity?
    8·2 answers
  • A 50 kg ball traveling at 20 m/s would have______ kinetic energy
    12·1 answer
  • The maximum centripetal acceleration a car can sustain without skidding out of a curved path is 9.40 m/s2 . If the car is travel
    8·1 answer
  • Please help thank you!!!!!( science)
    5·2 answers
  • What does fitness means to you
    11·2 answers
  • The change in momentum (and impulse) are still 3000 N*s. Safety devices (like airbags, seatbelts and crumple zones) cause crashe
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!