Daily Practice Problems undefined Laws of Motion

Question 1:

In a pulley system, two blocks are connected by a rope. One block has a mass of 6 kg, and the other has a mass of 8 kg. If the coefficient of friction between the 6 kg block and the surface is 0.2, what is the acceleration of the system? [Level: Difficult]

a) 1.5 m/s²

b) 0.07 m/s²

c) 2.5 m/s²

d) 3.0 m/s²

Question 2:

Two blocks of masses 5 kg and 7 kg are connected by a rope passing over a pulley. The system starts from rest. If the coefficient of friction between the 5 kg block and the surface is 0.3, what will be the velocity of the blocks after 4 seconds?[Level: Moderate]

a) 2.8 m/s

b) 3.5 m/s

c) 0.42 m/s

d) 5.0 m/s

Question 3:

A block of mass 12 kg is placed on an inclined plane with an angle of inclination 45°. If a force of 100 N is applied parallel to the incline, what is the acceleration of the block?[Level: Difficult]

a) 1.43 m/s²

b) 2.0 m/s²

c) 2.5 m/s²

d) 3.0 m/s²

Question 4:

A block of mass 20 kg is on an inclined plane with an angle of inclination 30°. If the coefficient of friction between the block and the incline is 0.4, what force is required to move the block up the incline with a constant velocity?

[Level: Difficult]

a) 150 N

b) 78.5 N

c) 200 N

d) 225 N

Question 5:

A 30 kg box is pushed with a force of 200 N across a rough surface. If the coefficient of friction is 0.5, what is the acceleration of the box? [Level: Moderate]

a) 1.5 m/s²

b) 2.0 m/s²

c) 2.5 m/s²

d) 3.0 m/s²

Question 6:

A block of mass 15 kg is placed on a rough horizontal surface. A force of 150 N is applied to the block, causing it to move. If the coefficient of friction is 0.4, what will be the acceleration of the block? [Level: Difficult]

a) 0.67 m/s²

b) 1.00 m/s²

c) 1.86 m/s²

d) 1.50 m/s²

Question 7:

Which of the following is an example of Newton's third law of motion? [Level: Easy]

a) A car accelerates when the driver presses the gas pedal.

b) A book rests on a table.

c) A rocket launches into space by expelling exhaust gases.

d) A ball falls to the ground due to gravity.

Question 8:

A car of mass 1500 kg is moving with a velocity of 25 m/s. If a net force of 1000 N is applied in the direction opposite to the motion, what will be the car's velocity after 10 seconds?[Level: Easy]

a) 35.7 m/s

b) 10 m/s

c) 5 m/s

d) 0 m/s

Question 9:

Two blocks of masses 8 kg and 12 kg are connected by a rope passing over a frictionless pulley. If the 8 kg block is on a rough surface with a coefficient of friction 0.25, what is the acceleration of the system? [Level: Moderate]

a. 0.98

b. 9.05

c. 0.05

d. 3.45

Question 10:

A block of mass 16 kg is placed on an inclined plane with an angle of inclination 60°. If the coefficient of friction between the block and the incline is 0.3, calculate the acceleration of the block. [Level: Moderate]

a. 4.95

b. 5.05

c. 3.00

d. 10.12

Question 11:

A 25 kg crate is pushed with a force of 200 N across a rough surface. If the coefficient of friction is 0.4, calculate the acceleration of the crate. [Level: Moderate]

a. 4.44

b. 4.07

c. 5.60

d. 33.9

Question 12:

A force of 120 N is applied to an object of mass 15 kg, causing it to accelerate. Calculate the acceleration of the object. (Solve for the acceleration and provide the answer.)[Level: Moderate]

a. 8 m/s²

b. 18 m/s²

c. 2 m/s²

d. 9 m/s²

Question 13:

Two blocks of masses 10 kg and 14 kg are connected by a rope passing over a pulley. If the coefficient of friction between the 10 kg block and the surface is 0.2, what is the acceleration of the system?[Level: Moderate]

a. 7.88

b. 5.13

c. 6.78

d. 10.88

Question 14:

A block of mass 18 kg is placed on an inclined plane with an angle of inclination 45°. If the coefficient of friction between the block and the incline is 0.3, calculate the acceleration of the block[Level: Moderate]

a. 5.55

b. 6.77

c. 4.77

d. 4.05

Question 15:

A 35 kg box is being pushed across a rough surface with a force of 250 N. If the coefficient of kinetic friction is 0.6, calculate the acceleration of the box. [Level: Easy]

a. 1.62 m/s²

b. 1.262 m/s²

c. 6.25 m/s²

d. 2.881 m/s²

Question 16:

Two blocks of masses 10 kg and 15 kg are connected by a rope passing over a frictionless pulley. If the 10 kg block is on a rough surface with a coefficient of friction 0.3, what is the acceleration of the system?[Level: Moderate]

a) 2 m/s²

b) 1.56 m/s²

c) 3 m/s²

d) 3.5 m/s²

Question 17:

A block of mass 25 kg is placed on an inclined plane with an angle of inclination 30°. If the coefficient of friction between the block and the incline is 0.2, what force is required to move the block up the incline with a constant velocity? [Level: Moderate]

a) 325 N

b) 122 N

c) 375 N

d) 400 N

Question 18:

A 40 kg box is pushed with a force of 300 N across a rough surface. If the coefficient of friction is 0.6, what is the acceleration of the box? [Level: Easy]

a) 0.5 m/s²

b) 1.0 m/s²

c) 1.6 m/s²

d) 2.0 m/s²

Question 19:

A force of 150 N is applied to an object of mass 20 kg, causing it to accelerate. Calculate the acceleration of the object.[Level: Moderate]

a) 3 m/s²

b) 4 m/s²

c) 5 m/s²

d) 7.5 m/s²

Question 20:

Two blocks of masses 9 kg and 13 kg are connected by a rope passing over a frictionless pulley. If the 9 kg block is on a rough surface with a coefficient of friction 0.25, what is the acceleration of the system? [Level: Difficult]

a. 1 m/s²

b. 7 m/s²

c. 5 m/s²

d. 10 m/s²

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All About Daily Practice Problems on JEE Physics Laws of Motion NCERT Chapter 5

Our Daily Practice Problems (DPPs) offer a diverse range of question types, including Multiple Choice Questions (MCQs) as well as short and long answer types. These questions are categorized into Easy, Moderate, and Difficult levels, allowing students to gradually progress and challenge themselves accordingly. Additionally, comprehensive solutions are provided for each question, available for download in PDF format - Download pdf solutions as well as Download pdf Questions. This approach fosters a holistic learning experience, catering to different learning styles, promoting self-assessment, and improving problem-solving skills. With our well-structured DPPs, students can excel in exams while gaining a deeper understanding of the subject matter. Hope you found the content on JEE Physics Laws of Motion NCERT Chapter 5 useful.

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