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
RoseWind [281]
3 years ago
7

Bob needs to accelerate a 4 kg box at 2 m/s2. How much force does he need to use?

Physics
1 answer:
sergij07 [2.7K]3 years ago
8 0

Answer:

8 N

Explanation:

From Newtons second law of motion, we have;

F = ma

where: F is the force applied, m is the mass of the object, and a is its acceleration.

From the given question: mass of box  = 4 kg and acceleration of the box  = 2 m/s^{2}, then;

F = 4 x 2

  = 8

F = 8 N

The amount of force to be used is 8 N.  

You might be interested in
It's velocity changes, but its speed remains the same.<br> The<br> true or false
statuscvo [17]

Answer:

True

Explanation:

Velocity is a vector quantity, which means that it carries both magnitude and direction. Hence when direction of a particle changes, although magnitude (speed) may remain same, it's velocity changes due to direction change. For ex. A particle is m... A particle is moving along x axis with speed 1m/s, it's velocity will be represented as 1i (i represents unit vector along x)

But if it now starts moving along y axis, it's velocity is 1j (j represents unit vector along y axis). Hence velocity changes with direction.

brainllest pls .

7 0
3 years ago
Which wavelength would scientists use to measure the molecular structure of H2O?
Ne4ueva [31]

Answer:

To find out what water is made of, it helps to look at its chemical formula, which is H2O. This basically tells us that the water molecule is composed of two elements: hydrogen and oxygen or, more precisely, two hydrogen atoms (H2) and one oxygen atom (O).

Explanation:

7 0
3 years ago
A portion of the atmosphere that becomes warmer than surrounding air will ____.
earnstyle [38]
<span>A portion of the atmosphere that becomes warmer than surrounding air will expand and rise. The warmer atmosphere the more space between the molecules. Therefore, warmer atmosphere </span><span>expands to allow more space for the molecules. Cool air on the other hand, contracts because the molecules in cool air need less space.</span>
3 0
3 years ago
An object with a mass of 1500 g (grams) accelerates 10.0 m/s2 when an
masya89 [10]

Answer:

15N

Explanation:

F=ma

m=1500g = 1.5kg

a=10m/s2

1.5×10=15 N

8 0
3 years ago
Read 2 more answers
Question 2 of 10
Mekhanik [1.2K]

the awnser to ur question is D

6 0
3 years ago
Other questions:
  • How much force is needed to accelerate a 1,100 kg car at a rate of 1.5 m/s2?
    12·1 answer
  • Two cars A and B are 100m apart moving towards each other with
    8·1 answer
  • Newton's first law of motion states that an object remains at rest unless a(n) ____ force acts on it. a. balanced c. gravitation
    8·2 answers
  • The compound PCl5 decomposes into Cl2 and PCl3. The equilibrium of PCl5(g) Cl2(g) + PCl3(g) has a Keq of 2.24 x 10-2 at 327°C. W
    5·2 answers
  • If the radius of the atom is the distance from point A to D, where is the MOST likely location of the LEAST concentration of mas
    8·1 answer
  • A plane traveled 500 miles east and landed in Arizona. then it traveled another 500 miles east and lands in California. The enti
    15·1 answer
  • Find the magnitude and direction for 101m,60.0,85.0m
    13·1 answer
  • Can I get someone's email and talk to them?
    7·1 answer
  • How do volcanos effect ecosystems? in ur own words please!!
    7·1 answer
  • Net force and acceleration
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!