Get premium membership and access questions with answers, video lessons as well as revision papers.
a. Velocity = displacement/time
= (150/3) /(50/60)
=180 km/h
b. 180000/3600 = 50 m/s
joseph rimiru answered the question on October 7, 2017 at 19:03
- An object moved in 100 s through a distance of 1800 m. what was its average velocity in:
a. m/s b. km/h
(Solved)
An object moved in 100 s through a distance of 1800 m. what was its average velocity in:
a. m/s b. km/h
Date posted: October 7, 2017. Answers (1)
- By use of element argument method ,show that
X U (Y U X)=X U Y
(Solved)
Show that X union (Y U X) is equal to X union Y. Use element argument method.
Date posted: October 5, 2017. Answers (1)
- Solve the equation
(1/10) x^2 + 3x = -20
(Solved)
Solve the equation
(1/10) x^2 + 3x = -20
Date posted: October 5, 2017. Answers (1)
- In each of the following vectors. Calculate their magnitude.
a = (4) b. b =(3 ) c. c =...(Solved)
In each of the following vectors. Calculate their magnitude.
a = (4) b. b =(3 ) c. c = (2)
(3) (-1) (5)
Date posted: October 5, 2017. Answers (1)
- Find the value of the scalar x and y where x(5) + y(-3) = (0)
...(Solved)
Find the value of the scalar x and y where x(5) + y(-3) = (0)
(2) (1) (3)
Date posted: October 5, 2017. Answers (1)
- Find the mean, mode and median of the following data collected in a certain research.
6,7,8,9,10,14,13,9,11,6,12
(Solved)
Find the mean, mode and median of the following data collected in a certain research.
6,7,8,9,10,14,13,9,11,6,12
Date posted: October 5, 2017. Answers (1)
- The velocity of a toy car increased uniformly from 30 m/s to 60 m/s in two minutes. Find the acceleration acquired by the toy car?(Solved)
The velocity of a toy car increased uniformly from 30 m/s to 60 m/s in two minutes. Find the acceleration acquired by the toy car?
Date posted: October 5, 2017. Answers (1)
- A trolley had a constant acceleration of 10 m/s^2 for 10 seconds. If the final velocity is 60 m/s, find
...(Solved)
A trolley had a constant acceleration of 10 m/s^2 for 10 seconds. If the final velocity is 60 m/s, find the initial velocity,
Date posted: October 4, 2017. Answers (1)
- The initial velocity of a vehicle is 20 m/s and after 8 seconds it is found to be 60 m/s. Find its
...(Solved)
The initial velocity of a vehicle is 20 m/s and after 8 seconds it is found to be 60 m/s. Find its
acceleration.
Date posted: October 4, 2017. Answers (1)
- Solve the inequality
2 – 4 x < 6
(Solved)
Solve the inequality
2 – 4 x < 6
Date posted: October 4, 2017. Answers (1)
- Combine the following pairs of simple statements into a compound statement.
a. x < 1/5 , x > 1/9
b. x= 5...(Solved)
Combine the following pairs of simple statements into a compound statement.
a. x < 1/5 , x > 1/9
b. x≤ 5 ,x ≥ 3
c. x ≤ 0.75 , x ≥ 0.135
Date posted: October 4, 2017. Answers (1)
- A hemispherical bowl can hold one litre of water, determine its radius (Solved)
A hemispherical bowl can hold one litre of water, determine its radius
Date posted: October 3, 2017. Answers (1)
- A straight road in a certain area rises steadily at angle of 10° to the horizontal ground. A lorry travels up the road. Calculate its...(Solved)
A straight road in a certain area rises steadily at angle of 10⁰ to the horizontal ground. A lorry travels up the road. Calculate its vertical and horizontal displacement.
Date posted: October 3, 2017. Answers (1)
- A bouncing castle consists of a conical top and a cylindrical base. The diameter of the base is 5 m and the height of the...(Solved)
A bouncing castle consists of a conical top and a cylindrical base. The diameter of the base is 5 m and the height of the cylindrical part is 4 m. If the total height is of the two parts is 9 m, calculate :
a. Its total surface area.
b. Its total volume.
Date posted: October 3, 2017. Answers (1)
- One of the large angles of rhombus is 100° and its sides are 20 cm long. Find the area of the rhombus.(Solved)
One of the large angles of rhombus is 100⁰ and its sides are 20 cm long. Find the area of the rhombus.
Date posted: October 3, 2017. Answers (1)
- A triangular lawn measures 12m, 16m, and 8m. Find the area of the garden.(Solved)
A triangular lawn measures 12m, 16m, and 8m. Find the area of the garden.
Date posted: October 3, 2017. Answers (1)
- Calculate the height of a cone if its base radius is 7.7 cm and has a volume of 514.6 cm^3.(Solved)
Calculate the height of a cone if its base radius is 7.7 cm and has a volume of 514.6 cm^3.
Date posted: October 2, 2017. Answers (1)
- A metal tube whose bore is 100 mm and thickness 21 is 7 m long. Find the volume of the metal it is made from.(Solved)
A metal tube whose bore is 100 mm and thickness 21 is 7 m long. Find the volume of the metal it is made from.
Date posted: October 2, 2017. Answers (1)
- A right pyramid has a square base 9 metres and is 20 metres high.
a. find its volume
b. If the...(Solved)
A right pyramid has a square base 9 metres and is 20 metres high.
a. find its volume
b. If the pyramid is cut at a height of 10 metres, find the volume of the frustum formed.
Date posted: October 2, 2017. Answers (1)
- Given that Cos x = sin (5x + 10). Find a. x b. ...(Solved)
Given that Cos x = sin (5x + 10). Find a. x b. Tan x
Date posted: October 2, 2017. Answers (1)