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Net Force

Question 1 b ...

Question

Question 1 (b)
The following is the distance-time table of an object in motion:
$\begin{matrix} T i m e i n s e c o n d s & D i s t a n c e i n m e t r e s 0 & 0 1 & 1 2 & 8 3 & 27 4 & 64 5 & 125 6 & 216 7 & 343 \end{matrix}$
(b) What do you infer about the forces acting on the object?

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Solution

(b) The object is in accelerated condition. According to Newton's second law of motion, the force acting on an object is directly proportional to the acceleration produced in the object. So, we can say unbalanced force is acting on the object.

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\begin{matrix} T i m e i n s e c o n d s & D i s t a n c e i n m e t r e s 0 & 0 1 & 1 2 & 8 3 & 27 4 & 64 5 & 125 6 & 216 7 & 343 \end{matrix}

\begin{matrix} T i m e i n s e c o n d s & D i s t a n c e i n m e t r e s 0 & 0 1 & 1 2 & 8 3 & 27 4 & 64 5 & 125 6 & 216 7 & 343 \end{matrix}

0

0

1

1

2

8

3

27

4

64

5

125

6

216

7

343

(a)

(b)

The following is the distance-time table of an object in motion:

(a) What conclusion can you draw about the acceleration? Is it constant, increasing, decreasing, or zero?

(b)What do you infer about the forces acting on the object?

Time	0	1	2	3	4	5	6	7
Distance	0	1	8	27	64	125	216	343

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