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
faust18 [17]
3 years ago
5

A block of mass 21 kg slides up a frictionless plane inclined at 13◦ with the horizontal under the influence of a force of 210 N

acting parallel to the incline and up the incline. The acceleration of gravity is 9.8 m/s 2 . What is the acceleration of the block? Answer in units of m/s 2 .
Physics
1 answer:
svetlana [45]3 years ago
3 0

Answer:

a= 8.74 m/s²

Explanation:

Given that

m = 21 kg

θ = 13◦

F= 210 N

g= 9.8 m/s²

The force due to gravity

F₁= m g sinθ

F₁=12 x 9.8 x sin 13◦

F₁=26.45 N

Lets take acceleration is a  m/s²

Form Newtons second law

F - F₁ = m a

210 - 26.45 = 21 x a

a= 8.74 m/s²

You might be interested in
Average velocity is different than average speed because calculating average velocity involves
Katyanochek1 [597]
Average velocity is different than average speed because calculating average velocity involves Momentum.
5 0
3 years ago
Read 2 more answers
The ________ and ________ are used to resolve vectors into their components.
forsale [732]
The sin function and the cos function are used to resolve vectors into their componets
7 0
3 years ago
Which is the best predictor of the radioactive nature of an isotope?
Luda [366]
The Neutron-to-Proton Ratio. Hope this helps Sorry if it's wrong I'm a little rusty on Physics.
6 0
3 years ago
Read 2 more answers
r was thirsty and decided to mix up a pitcher of lemonade. She put lemon juice, water, and sugar into a pitcher and stirred it t
slamgirl [31]
She could tell by how many components she put in. The compounds, are like the ingredients. The Mixture is all the ingredients stirred together.
7 0
3 years ago
Read 2 more answers
You throw a balloon that floats in the air with a velocity of 2 m / s south . If the wind speed is 5 m / s west , how far south
zvonat [6]

Answer:

The distance traveled by the balloon is 10.77 m

Explanation:

velocity of the ball, v_b = 2 m/s south

velocity of the air, v_a = 5 m/s west

To determine the distance the balloon will travel after 2 seconds, first determine the resultant velocity of the balloon.

                                       | 2m/s

                                       |

                                       |

                                      ↓

      5m/s  ←------------------

the two velocities forms a right angled triangle and the resultant will be the hypotenuses side of the triangle.

R² = 5² + 2²

R² = 29

R = √29

R = 5.385 m/s

The distance traveled by the balloon is calculated as;

d = R x t

where;

t is time of the motion = 2 seconds

d = 5.385 x 2

d = 10.77 m

Therefore, the distance traveled by the balloon is 10.77 m.

4 0
3 years ago
Other questions:
  • As an ice skater begins a spin, his angular speed is 3.14 rad/s. After pulling in his arms, his angular speed increases to 5.94
    12·1 answer
  • Two loudspeakers in a plane, 5.0m apart, are playing the same frequency. If you stand 14.0m in front of the plane of the speaker
    14·1 answer
  • All electromagnetic waves have the same speed in which of the following?
    11·1 answer
  • A dielectric material is inserted between the charged plates of a parallel-plate capacitor. Do the following quantities increase
    12·2 answers
  • Some plants disperse their seeds by having the fruit split and contract, propelling the seeds through the air. The trajectory of
    15·1 answer
  • To hear a train approaching from far away, why is it more convenient to put the ear to the track?
    14·1 answer
  • Help please!!! Brainlyist to the person who answers and explains correctly!
    12·2 answers
  • Memories
    11·1 answer
  • Explain the 3 method of heat transfer<br>a. conduction<br>b. convection<br>c. radiation​
    5·1 answer
  • What is the value of y?<br>18<br>10<br>2y + 4<br>10 + 2х​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!