CBSE Class 9 Physics Newton's Second Law Of Motion
Sample Q&A
- Why we don't hurt when we jump on muddy floor compared to hard floor
- A 4 kg block on an inclined plane is acted upon by a horizontal force of 40N as shown in the figure (please refer the image attached). The coefficient of kinetic friction between the block and the plane is 0.3. What is the acceleration of the block if it is moving up the plane?(sin37° = 0.6)
A) 1.6 m/s^2 up along the plane
B) 1.6 m/s^2 down the plane
C) 2 m/s^2 up along the plane
D) 2 m/s^2 down the plane
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