0

Guest

Courses New

An object is free to move on a table, except that there is a constant frictional force f that opposes the motion of the object when it moves. If a force of 10.0 N pulls the objects, the acceleration is 2.0 m/s 2 . If a force of 20.0 N pulls the object, the acceleration is 6.0 m/s 2 . (A) What is the force of friction f ? (a) 1.0N (b) 3.33 N. (c) 5.0 N. (d) 10.0 N. (B) what is the mass of the object? (a) 0.40 kg. (b) 2.5 kg. (c) 3.33 kg. (d) 5.0 kg.

An object is free to move on a table, except that there is a constant frictional force f that           opposes the motion of the object when it moves. If a force of 10.0 N pulls the objects, the             acceleration is 2.0 m/s2. If a force of 20.0 N pulls the object, the acceleration is 6.0 m/s2.
(A) What is the force of friction f ?
(a) 1.0N               (b) 3.33 N.          (c) 5.0 N.            
(d) 10.0 N.
(B) what is the mass of the object?
(a) 0.40 kg.         (b) 2.5 kg.           (c) 3.33 kg.        
(d) 5.0 kg.

Grade:upto college level

1 Answers

Deepak Patra
askIITians Faculty 471 Points
8 years ago
a) The correct option is (C) 5.0 N.
The net force (Fnet) acting on the object is equal to the applied force (F) minus the frictional force (f) which opposes the motion of the object when it moves. 233-416_1.JPG
233-1858_1.JPG

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More