A 2kg chunk of putty moving at 5 m/s collided with and sticks to a 3kg medicine ball initially at rest. What is the momentum of the putty before the collision

10 kg.m/s

Explanation:

Momentum is a product of mass and velocity, expressed as p=mv where m is the mass of an object, v is the velocity of an object and p denote momentum.

The principle of linear momentum states that the sum of momentum before and after collision are always equal.

Given mass of initially as 2kg and its velocitu as 5kg and taking forward direction as positive.

Momentum before collision will be

P=2kg*5m/s=10 kg.m/s

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: