$MathMaster logo$

MathMaster

Home
general
if the speed of a bicycle changes until it reaches a speed of 8m s in 20 seconds with an acceleration of 0 3m s calculate

Question

If the speed of a bicycle changes until it reaches a speed of 8m/s in 20 seconds with an acceleration of 0.3m/s² Calculate its original speed

122

likes

610 views

Answer to a math question If the speed of a bicycle changes until it reaches a speed of 8m/s in 20 seconds with an acceleration of 0.3m/s² Calculate its original speed

$Expert avatar$

4.6

97 Answers

1. Write the kinematic equation:

v_f = v_i + a \cdot t

2. Rearrange to solve for

v_i

:

v_i = v_f - a \cdot t

3. Substitute the given values:

v_i = 8 - (0.3 \cdot 20)

4. Calculate the result:

v_i = 8 - 6 = 2 \, \text{m/s}

5. The original velocity is

v_i = 2 \, \text{m/s}

Frequently asked questions (FAQs)

What is the area of a triangle with base = 6 units and height = 8 units?

+

Question: Given vectors A = (3, -2) and B = (-4, 5), find the vector sum A + B. (

+

Question: How many different ways can a committee of 4 members be formed from a group of 10 people?

+

New questions in Mathematics

How to find the value of x and y which satisfy both equations x-2y=24 and 8x-y=117

Simplify the expression sin³(x)+cos³(x), using trigonometric functions

String x = 5 Int y=2 System.out.println(x+y)

[(36,000,000)(0.000003)^2]divided(0.00000006)

(3x^(2) 9x 6)/(5x^(2)-20)

If eight basketball teams participate in a tournament, find the number of different ways that first, second, and third places can be decided assuming that no ties are allowed.

Determine the momentum of a 20 kg body traveling at 20 m/s.

Suppose SAT reading scores are normally distributed with a mean of 496 and a standard deviation of 109. The University plans towards scholarships for students who scores are in the top 7%. What is the minimum score required for the scholarship round your answer to the nearest whole number.

Clara usually walks briskly to the farmers' market and it takes her 22 minutes. Today she walked leisurely and it took 61/2 minutes. How much more time than usual did she take to reach the market today?

1. A pediatric client is prescribed digoxin for congestive heart failure. The dose prescribed is 40 mcg/kg twice daily. The child weighs 33 pounds. What is the dosage in mg to be given per dose? Round to the nearest hundredth. Calculate your answer in mg per dose. Enter numerical value only.____mg

30y - y . y = 144

a survey showed that 3 out of 7 voters would vote in an election. based on this survey, how many people would vote in a city with 25,000 people?

17. A loan for $104259 is taken out for 10 years with an annual interest rate of 9.4%, compounded quarterly. What quarterly payment is required to pay the loan off in 10 years? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.

Farm Grown, Inc., produces cases of perishable food products. Each case contains an assortment of vegetables and other farm products. Each case costs $5 and sells for $15. If there are any not sold by the end of the day, they are sold to a large food processing company for $3 a case. The probability that daily demand will be 100 cases is 0.30, the probability that daily demand will be 200 cases is 0.40, and the probability that daily demand will be 300 cases is 0.30. Farm Grown has a policy of always satisfying customer demands. If its own supply of cases is less than the demand, it buys the necessary vegetables from a competitor. The estimated cost of doing this is $16 per case. (a) Draw a decision table for this problem (b) What do you recommend?

Find I (Intrest) using simple interest formula of 17700 @ 15% for 4 years

25) Paulo saves R$250.00 per month and keeps the money in a safe in his own home. At the end of 12 months, deposit the total saved into the savings account. Consider that, each year, deposits are always carried out on the same day and month; the annual yield on the savings account is 7%; and, the yield total is obtained by the interest compounding process. So, the amount that Paulo will have in his savings account after 3 years, from the moment you started saving part of your money monthly, it will be A) R$6,644.70. B) R$ 9,210.00. C) R$ 9,644.70. D) R$ 10,319.83. E) R$ 13,319.83

Kayla started a book club at her school. The number of girls in the book club was one more than twice the number of boys. If there are 15 girls in the book club, how many boys are in the club?

Write a linear equation in the slope-intercept form. Slope of the line is -1 and goes through (8,4)