Explanation:
Given:m = 1,250 kg
[tex]v_i[/tex] = 30 km/hr
F = 1,700 N
t = 10 s
Required:Final velocity
Equation:ForceF = ma
where: F - force
m - mass
a - acceleration
Accelerationa = [tex]\frac{v_f \:-\:v_i}{t}[/tex]
where: a - acceleration
[tex]v_i[/tex] - initial velocity
[tex]v_f[/tex] - final velocity
t - time elapsed
Solution:Solve for acceleration using the formula for forceF = ma
Substitute the value of F and m
(1700 N) = (1250 kg)(a)
a = [tex]\frac{1700\:N}{1250\:N}[/tex]
a = 1.36 m/s²
Solve for final velocity using the formula for accelerationConvert 30 km/hr to m/s= [tex]\frac{30\:km}{hr}\:×\:\frac{1000\:m}{1\:m}\:×\:\frac{1\:hr}{3600\:s}[/tex]
= [tex] 8.33 m/s [/tex]
Substitute the value of a, [tex]v_i[/tex] and ta = [tex]\frac{v_f \:-\:v_i}{t}[/tex]
[tex]1.36\: m/s² \:= \:\frac{v_f \:-\:8.33\:m/s}{10\:s}[/tex]
[tex](10 \:s)1.36\: m/s² \:= \:v_f \:-\:8.33\:m/s[/tex]
[tex]v_f\: =\: (10 \:s)1.36 \:m/s²\: + \:8.33\:m/s[/tex]
[tex]v_f \: =\: 13.6 \:m/s \:+\: 8.33\:m/s[/tex]
[tex]v_f\: =\: 21.93\: m/s[/tex]
Convert to km/hr= [tex]\frac{21.93\:m}{s}\:×\:\frac{1\:km}{1000\:m}\:×\:\frac{3600\:s}{1/:hr}[/tex]
= [tex]78.95\: km/hr[/tex]
Final answerThe velocity of the car after 10 s is 78.95 km/hrBefore turning in a test, it would be best to
O rush through the test and panic.
O make sure that some answers are incomplete.
O check how quickly the test was completed.
O check the grammar and double check the work.
Answer: D mate
Explanation:
Before turning in a test, it would be best to: D. check the grammar and double check the work.
What is a test?A test can be defined as a group of questions that are designed and developed to elicit a specific information in the form of answer from an individual such as a student or an interviewee.
Thus, a test is primarily formulated by professionals, so as to assess the understanding of a person and as such, it is very necessary to spend a large amount of time to check the grammar and double check the work before turning in a test for submission.
Read more on test here: https://brainly.com/question/1910346
#SPJ2
Which of the following materials will prevent the flow of electricity?
Copper wire
Gold ring
Metal door
Rubber tires
Answer:
rubber tires prevents the flow of electricity bc rubber is not a conductor
Please help meh!!! I appreciate it!
Answer:
★ The answers ARE B,A,D,D,A !
Explanation:
Hope you have a great day
