Question

Notify Me Bookmark

A 50-kg student pulls on a rope attached to a 2-kg box, which moves at constant speed along a smooth surface, as shown. Which of the following corresponds to a force pair? The friction between the box and the surface, and the horizontal component of the push on the box. The normal force on the box and the weight of the box. The push on the box by the student and the push on the student by the box. The vertical component of the push applied by the student and the weight of the box. The weight of the box and the weight of the student. There are no force pairs because the acceleration of the box is zero.

A 50-kg student pulls on a rope attached to a 2-kg box, which moves at constant speed along a smooth surface, as shown. Which of the following corresponds to a force pair? The friction between the box and the surface, and the horizontal component of the push on the box. The normal force on the box and the weight of the box. The push on the box by the student and the push on the student by the box. The vertical component of the push applied by the student and the weight of the box. The weight of the box and the weight of the student. There are no force pairs because the acceleration of the box is zero.

Image text
A 50-kg student pulls on a rope attached to a 2-kg box, which moves at constant speed along a smooth surface, as shown.
  1. Which of the following corresponds to a force pair? The friction between the box and the surface, and the horizontal component of the push on the box. The normal force on the box and the weight of the box. The push on the box by the student and the push on the student by the box. The vertical component of the push applied by the student and the weight of the box. The weight of the box and the weight of the student. There are no force pairs because the acceleration of the box is zero.

Detailed Answer

0 0

Please enter your email here. You will get email when this question is answered by our tutor.

Doubtrix Logo

Problem is not yet solved!

Click on Notify me to get email when question is answered.

Join Doubtrix with 7-days free trial

  • Icon Correct & Verified Answers
  • Icon No AI-Generated Answers
  • Icon Video Solution for Difficult Questions
  • Icon Work With Experts to Reach at Correct Answers
Notify me Login Sign Up

Similar/Related Questions

Figure 1 shows Block A having mass mA = 3 kg and is attached to a spring with stiffness k = 100 kN/m and upstretched length l0 = 0.5 m. Another Block B with mass mB = 5 kg is pressed against Block A so that the spring deforms a distance 0.2 m. The surface plane is not a smooth surface, having the coefficient of kinetic friction between the plane and the block is given as μk = 0.3. Answer the following Q1 to Q4. Figure 1 Q1. Based on the figure, what are the force components that are acting on Block A? a. Spring force, weight, 2 normal forces, friction force, applied force b. Spring force, weight, normal force, friction force c. Spring force, weight, 2 normal forces, friction force d. Spring force, weight, normal force, friction force, applied force Q2. Draw kinetic diagram for Block A. Q3. Draw kinetic diagram for Block B. Q4. Given aA = aB = a (as block A and block B are moving together), determine the acceleration of the block, a.
Solution
0 0

Figure 1 shows Block A having mass mA = 3 kg and is attached to a spring with stiffness k = 100 kN/m and upstretched length l0 = 0.5 m. Another Block B with mass mB = 5 kg is pressed against Block A so that the spring deforms a distance 0.2 m. The surface plane is not a smooth surface, having the coefficient of kinetic friction between the plane and the block is given as μk. = 0.3. Answer the following Q1 to Q4. Figure 1 Q1. Based on the figure, what are the force components that are acting on Block A? a. Spring force, weight, 2 normal forces, friction force, applied force b. Spring force, weight, normal force, friction force c. Spring force, weight, 2 normal forces, friction force d. Spring force, weight, normal force, friction force, applied force Q2. Draw kinetic diagram for Block A. Q3. Draw kinetic diagram for Block B. Q4. Given aA = aB = a (as block A and block B are moving together), determine the acceleration of the block, a.
Solution
0 0

A woman pulls on a 6.00 - kg crate, which in turn is connected to a 4.00−kg crate by a light rope. The light rope remains taut. If the two crates move at constant speed, a. the 6.00−kg crate exerts more force on the 4.00−kg crate than the 4.00−kg crate exerts on the 6.00−kg crate. b. the 6.00−kg crate exerts as much force on the 4.00−kg crate as the 4.00−kg crate exerts on the 6.00−kg crate. c. the 6.00−kg crate exerts less force on the 4.00−kg crate than the 4.00−kg crate exerts on the 6.00−kg crate. d. No enough information to tell. Superman throws a 2400−N rock. What horizontal force must Superman apply on the rock to give it a horizontal acceleration of 12.0 m/s2 ? a. 2400 N b. 200 N c. 2939 N d. None of the above The car in the figure has a mass of 1000 kg and is held constant on the frictionless ramp by means of the light cable. The magnitude of the component of the car's weight in the direction parallel to the ramp is approximately a. 8400 N b. 4142 N c. 8882 N d. 5047 N

Solution
0 0