MATHEMATICS HIGH SCHOOL

All equation of motion with examples

Answers

Answer 1
Answer:

Answer:

Answer is below. Hope this helps you!

Step-by-step explanation:

(i)v = u + at

(ii) s = ut + 1/2 *at²

(iii)2as = v²-u²

Examples:

A train starting from rest attains a velocity of 72km/h in 5 minutes. Assuming that the acceleration is uniform, find (i) the acceleration and  (ii)  the distance travelled by the train for attaining this velocity.

72km/h = 20m/s

(i) use v= u+ at

20 = 0 + a*300

20 = 5a

20 / 300= a

1/15 ms² = a

to find distance

use 2as= v²-u²

2 *1/15 * s = (20) - 0²

2/15s = 400

s = 400 * 15/2

s = 3000m = 3 km

a car accelerates with a uniform acceleration of 1m/s². it starts with a  velocity of 18km/h and reaches 36 km/h in 5 seconds find the distance travelled.

18 km /h = 5m/s

36km/h = 10m/s

use - s= ut + 1/2at²

s = 5 * 5 + 1/2 * 1 * (5)²

s = 25 + 25/2

s = 37.5 meters
Answer 2
Answer:

Answer:

It is described in terms of displacement, distance, velocity, acceleration, time and speed. Jogging, driving a car, and even simply taking a walk are all everyday examples of motion.

...

The three equations are,

v = u + at.

v² = u² + 2as.

s = ut + ½at²

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Answers

Answer: 880

Step-by-step explanation:

What is 30% of $450????????????????????????????????????

Answers

multiply .3 with 450 and you will get $135.

Jo paints some tennis balls and puts them in a bag. She picks a ball at random from the bag and replaces it. She repeats this 60 times, and gets a ball not painted 50 times. Find the experimental probability of getting a painted ball from Jo's bag.

Answers

Answer:

1/6

Step-by-step explanation:

An experimental probability is the number of times an event occurred when actually attempted.

So, if Jo does the experiment 60 times and receives 50 unpainted balls, then calculate how many painted balls she got:

60-50 = 10.

So, the probability of picking a painted ball = 10/60 = 1/6

Hope this helps

Jack and Jill each planted flowers in their garden. Jack spent $41 on 4 daylilies and 7 roses. Jill spent $81 on 12 daylilies and 7 roses.​

Answers

194 is the awnser i know this becuase i have done this one on edguentitt awnser

If it takes Maddox 7.5 hours to drive 375 miles, how far could he drive in 3 hours at the same rate?

Answers

Answer:

150 miles

Step-by-step explanation:

We can use ratios to solve

375 miles       x miles

-------------   = --------------

7.5 hours       3 hours

Using cross products

375 * 3 = 7.5 x

1125 = 7.5x

Divide each side by 7.5

1125/7.5 =x

150 x

Answer:

150 miles

Step-by-step explanation:

375 divided by 7.5 is 50

50 time 3 is 150

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C. $30,000/year with a 10% bonus
D. $15.00/hour and a $2,000 bonus at the end of the year

Answers

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