Acceleration - practice problems
Acceleration is the rate at which an object's velocity changes over time, measured in meters per second squared (m/s²). It occurs when an object speeds up, slows down, or changes direction. Positive acceleration increases velocity, while negative acceleration (deceleration) reduces it. Force causes acceleration, as described by Newton's second law: F = ma (force equals mass times acceleration). Examples include a car speeding up, a ball falling under gravity, or a planet orbiting the sun.Number of problems found: 253
- 4100 USD
4100 USD was distributed in 50 boys and girls. Each boy got $ 90 and each girl $ 65. Then, find the number of boys. - Five men
5 men or 9 women can do a piece of work in 19 days, in how many days will 3 men and 6 women do it? - Cement, sand, and gravel
Concrete tiles are made using buckets of cement, sand, and gravel mixed in a ratio of 1:4:6. How many buckets of gravel are needed for 4 buckets of cement? - The ratio 20
The ratio of the boys to the girls is 1:3. There are 20 pupils. How many boys and how many girls are there? - One half of students There are 1200 students in the school. Of which 600 are girls. Find the percentage of boys.
- Known hcf and find lcm
Given that HCF (306, 657) = 9, find LCM (306, 657). - Students 48 If 80% of the students of a school are boys and 225 are girls, find the number of all students.
- A baby
A baby weighs 8 and 1/4 pounds at birth. Two weeks later, she weighs 8 and 7/8 pounds. How much did the baby gain? - A bag 6
A bag contains 3 red marbles, 8 blue marbles, and 5 green marbles. If two marbles are drawn out of the bag, what is the probability, to the nearest 1000th, that both marbles drawn will be blue? - Geometric 20
Find the geometric mean of 15 15 20 25 30. - Daniw Daniw Elementary School has a total of 98 pupils. If 3/7 of them are boys, how many of the pupils are girls?
- FGH right triangle
Given a right triangle with leg lengths f and g, and hypotenuse h, if f = 7 cm and h = 11.2 cm, what is g? - There 34 There were 90 children at the birthday party. If 3/5 of them were boys, how many were girls?
- The number 8
The number of sheep is x. The number of goats is thrice the number of sheep. Write an expression for the number of goats. - Pupils There are 40 pupils in a class. 30% of them are boys. How many pupils in the class are girls?
- Z-score calc
What is the Z Score for the following numbers: X is 16, and data for the population mean, and the standard deviation is 196, 193, 79, 30, 29, 81, 25, 21, 164 Level of difficulty = 2 of 2 Please format it to 2 decimal places. - Carol 2
Carol bought 5 snow hats and 2 pairs of gloves. The hats were priced at $12, and each pair of gloves cost the same amount. If the total amount of Carol's purchase is $135, what was the cost of 1 pair of gloves? - The ratio 14 The ratio of boys to girls is 8:7. If there are 40 boys, how many girls are there in the class?
- The ratio 13 The ratio of boys to girls in Mr. Hakeem's class is 6:4. If there are 18 boys, how many girls are there?
- Native plants
In a garden, 5/6 of the area is filled with native plants. The native plants take up 107/4 m². Let g represent the total area of the garden. Find g = total area of the garden.
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