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23:08 6 0 \%. 46 ? 45\%. 9 of 20 (EC/NOVEMBER 2023) PHYSICAL SCIENCES P1 9 QUESTION 4 In the diagram below, an 8 kg block is connected to a 4 kg block by means of a light, inextensible string. A constant force of 55 N is applied to the 8 kg block to accelerate the combination of blocks to the right. The kinetic frictional force between the 4 kg block and the inclined plane is 4 N while the kinetic frictional force between the 8 kg block and the horizontal plane is 8 N . 4.1 State Newton's second law of motion in words. 4.2 Draw a free body diagram of all forces acting on the 4 kg block. 4.3 Calculate the tension in the string connecting the two blocks. 4.4 The angle of inclination is decreased to \( 10^{\circ} \). How will the change affect the coefficient of kinetic friction? Choose from INCREASES, DECREASES or REMAINS THE SAME. Explain your answer. [14] Copyright reserved Please turn over \( 7+ \) T T us

          23:08 6
0
\%. 46
?
45\%.
9 of 20
(EC/NOVEMBER 2023)
PHYSICAL SCIENCES P1
9

QUESTION 4
In the diagram below, an 8 kg block is connected to a 4 kg block by means of a light, inextensible string. A constant force of 55 N is applied to the 8 kg block to accelerate the combination of blocks to the right.

The kinetic frictional force between the 4 kg block and the inclined plane is 4 N while the kinetic frictional force between the 8 kg block and the horizontal plane is 8 N .
4.1 State Newton's second law of motion in words.
4.2 Draw a free body diagram of all forces acting on the 4 kg block.
4.3 Calculate the tension in the string connecting the two blocks.
4.4 The angle of inclination is decreased to \( 10^{\circ} \). How will the change affect the coefficient of kinetic friction?

Choose from INCREASES, DECREASES or REMAINS THE SAME.
Explain your answer.
[14]
Copyright reserved
Please turn over
\( 7+ \)
T
T
us

23:08 6
0
%. 46
?
45%.
9 of 20
(EC/NOVEMBER 2023)
PHYSICAL SCIENCES P1
9

QUESTION 4
In the diagram below, an 8 kg block is connected to a 4 kg block by means of a light, inextensible string. A constant force of 55 N is applied to the 8 kg block to accelerate the combination of blocks to the right.

The kinetic frictional force between the 4 kg block and the inclined plane is 4 N while the kinetic frictional force between the 8 kg block and the horizontal plane is 8 N .
4.1 State Newton's second law of motion in words.
4.2 Draw a free body diagram of all forces acting on the 4 kg block.
4.3 Calculate the tension in the string connecting the two blocks.
4.4 The angle of inclination is decreased to 10^∘. How will the change affect the coefficient of kinetic friction?

Choose from INCREASES, DECREASES or REMAINS THE SAME.
Explain your answer.
[14]
Copyright reserved
Please turn over
7+
T
T
us

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