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
pav-90 [236]
3 years ago
9

A 2,000-kg car traveling at 40 m/s hits a wall with a force of 40,000 N and comes to a stop. What was the impact time?

Biology
2 answers:
xxMikexx [17]3 years ago
8 0

Answer:

The impact time is equal to 2 seconds

Explanation:

Given -

Force (F) = 40,000 N or \frac{Kg-m}{s^2}

Mass(M) = 2,000 Kg

Initial Velocity (u) = 40\frac{m}{s}

Final Velocity (v) = 0\frac{m}{s}

Force exerted by any body is equal to the product of its mass and acceleration

Hence, mathematically it can be represented as

F = M * a

Substituting the given values, we get -

40,000 = 2,000 * a\\a = 20 \frac{m}{s^2}

As per Newton's first law of motion,

v = u - at in case of deceleration

Substituting the available values in above equation, we get -

0 = 40 - 20 * t\\40 = 20*t\\t = \frac{40}{20} \\t = 2 seconds

The impact time is equal to 2 seconds

Diano4ka-milaya [45]3 years ago
6 0
If I did my math correct, the answer would be 2 seconds.
You might be interested in
Which of the following is not a way Science influence society
Solnce55 [7]
You forgot to include the following choices but no worries I did this question before and the answers are: 

advances in technology

increases understanding on environment

etc
4 0
3 years ago
Why is it difficult to evaporate seawater?
Alika [10]

Answer: Different liquids will evaporate differently depending on the force of attraction between the molecules of the liquid. The weaker the force of attraction the higher the rate of evaporation and vice versa.

In Sea water the water molecules are attracted to the salt ions and thus it requires more energy to evaporate.

6 0
2 years ago
Which organelle would you be?
11111nata11111 [884]

Answer:

Organelles of a cell

Explanation:

6 0
2 years ago
Read 2 more answers
What’s the monomers of nucleic Acids ?
Shtirlitz [24]
The answer is nucleotides
4 0
3 years ago
Will mark brainalist!!
fenix001 [56]

Answer:

1 is a phenotype

2 is a genotype

p reps the given allele of one parent

6 0
3 years ago
Read 2 more answers
Other questions:
  • What do atoms have an equal number of?
    11·2 answers
  • Which of the following statements about the cytoskeleton is incorrect? A. The dynamic aspect of cytoskeletal function is made po
    7·1 answer
  • Which term describes the process that involves reproduction of two different organisms resulting in two haploid cells, each with
    12·1 answer
  • explain why mesopotamia became a great place for civilization to grow ? what factors encouraged humans to settle and thrive i th
    8·1 answer
  • The special type of cell division required to produce gametes is: fertilization meiosis capacitation mitosis
    13·1 answer
  • Most of the water in plants is lost through the ____.
    15·1 answer
  • What would happen if the organ system failed to work together?
    13·2 answers
  • The Chatham Island robin is a small endangered bird found in scrub forests off the coast of New Zealand. The robin is preyed upo
    13·1 answer
  • What kind of reaction is responsible for the liberation of carbon dioxide in red blood cells
    5·1 answer
  • What is the best evidence to prove that Irene was heterozygous for hemophilia?
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!