Aforce f acts in the forward direction on a cart of mass m. a friction force/opposes this motion. (a) use newton’s second law and show that the acceleration of the cart is (f−f)/m. (b) if the cart’s mass is 4.0 kg, the applied force is 12.0 n, and the friction force is 6.0 n, show that the cart’s acceleration is 1.5 m/s2.

Explanation:

It is given that cart is accelerating therefore a net force is acting on the cart which is accelerating it.

If F is the applied force and f is the friction force then acceleration is given by

(ii)If

mass

acceleration

acceleration is given by

nec chapter 5 contains

c. information on special occupancy areas

nec chapter 6 covers

a. special equipment

which of the following rules contain the words shall or shall not and must be adhered to?

b. mandatory rules

which of the following rules identify actions that are allowed but not required and typically cover options or alternative methods?

c. optional rules

which of the following serves as the introduction to the nec and provides an overview of the book?

a. nec article 90

organizations that test products for safety are

c. nrtls

the nec is published by the

a national fire protection association

the nec is divided into

b. 9 chapters

the nec provides informative annexes for

c. informational materials and examples

two terms from nec article 100 that trainees should become familiar with are

b. labeled and listed

explanation: