Answer questions on vectors and 1
Activity 2
What is meant by the terms physical quantity, equal vector and
negative vector?
2
Write definitions for vector quantity, scalar quantity and
resultant vector.
3
Classify the following quantities as vectors or scalars: mass,
weight, temperature,
Force F = 5 N acts to the right.
1
Draw a fully labelled scale drawing of the 5 N force using a scale of
10 mm : 1 N. (Hint: Refer to Figure 5 on page 213.)
2
Draw and label the following vectors to scale (one below the other):
4.2.1 2F (Remember F = 5 N to the right)
4.2.2 0,5F
4.2.3 -F
4.2.4 -2F
Two vectors, F, and F, act on an object. F, = 2 N upwards and F, = 2
downwards.
1 Make a tail-to-head sketch vector diagram of the forces.
2 Explain whether F, and F, are equal vectors or not.
the
tant force​

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

When temperature of a substance increases, of its particles increase resulting in more between particles. real world applications of thermal expansion absolute zero (-273 degrees c) is the lowest possible temperature on the kelvin scale. it is a measure of where a substance has no kinetic energy. heat is a process of the . energy flows spontaneously from a object to a until equilibrium is reached. heat is measured in heat is transferred throughis a method of heat transfer that occurs between particles of matter that are in direct contact with each other. are poor conductors that impede / reduce the rate of heat transfer. is a method of heat transfer that occurs in fluids (non-solids) by means of currents. real world application of convectiona method of heat transfer through electromagnetic waves. when energy moves from one object to another inside a closed system, no energy is or in the system in the transaction. systems will spontaneously move to a state of organized energy or high disorder over time called

Aball is thrown from the top of a building with an initial velocity of 21.9 m/s straight upward, at an initial height of 51.6 m above the ground. the ball just misses the edge of the roof on its way down, as shown in the figure. (a) determine the time needed for the ball to reach its maximum height. (b) determine the maximum height. (c) determine the time needed for the ball to return to the height from which it was thrown, and the velocity of the ball at that instant. (d) determine the time needed for the ball to reach the ground. (e) determine the velocity and position of the ball at t = 5.35 s.