QV
Fill in the blanks using the correct options given in the blanks (Attempt any 10)
LCD The UNITED STATES
a President. (has have)
The woman
I met was Kashmiri (Which / whom
a) One of the pictures
very beautiful
(iv) He is a man
his son's welfare.
(seek seeks)
best quality is sold by us
(a an the)
(vi) He found the gate
(lock/locked locking)
(vii) If you pass the exam, you
get a certificate.
(Might/ could will can)
(viii) Do you take
sugar in tea?
(Some few/ many
(ix) You should take care
your health
(infoto)
(x) She is sitting
her mother
between with by)
(xi) Strike the iron
it is hot.
(after till while
(xii) He is
to buy a car next month.
kgo goes going)
Answers
Explanation:
the final example of the last section, we saw how we could calculate a dynamic acceleration based on a vector pointing from a circle on the screen to the mouse position. The resulting motion resembled a magnetic attraction between circle and mouse, as if some force were pulling the circle in towards the mouse.
In this section, we will formalize our understanding of the concept of a force and its relationship to acceleration. Our goal, by the end of this, is to understand how to make multiple objects move around the screen and respond to a variety of environmental forces.
Before we begin examining the practical realities of simulating forces in code, let’s take a conceptual look at what it means to be a force in the real world. Just like the word “vector,” “force” is often used to mean a variety of things. It can indicate a powerful intensity, as in “She pushed the boulder with great force” or “He spoke forcefully.” The definition of force that we care about is much more formal and comes from Isaac Newton’s laws of motion:
A force is a vector that causes an object with mass to accelerate.
The good news here is that we recognize the first part of the definition: a force is a vector. Thank goodness we just spent a whole section learning what a vector is and how to program with PVectors!
Let’s look at Newton's three laws of motion in relation to the concept of a force.