question 1\n1 pts\na football player runs in one direction to catch a pass, then turns and runs twice as…

question 1\n1 pts\na football player runs in one direction to catch a pass, then turns and runs twice as fast in the opposite direction toward the goal line. which of the following is a correct expression for the original velocity and the resulting velocity?\n -vplayer -2vplayer\n2vplayer -vplayer\nvplayer -2vplayer\nvplayer 2vplayer\nquestion 2\n1 pts\nidentify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, wind velocity\nscalar, vector, scalar\nscalar, scalar, vector\nvector, scalar, scalar\nvector, scalar, vector

question 1\n1 pts\na football player runs in one direction to catch a pass, then turns and runs twice as fast in the opposite direction toward the goal line. which of the following is a correct expression for the original velocity and the resulting velocity?\n -vplayer -2vplayer\n2vplayer -vplayer\nvplayer -2vplayer\nvplayer 2vplayer\nquestion 2\n1 pts\nidentify the following quantities as scalar or vector: the mass of an object, the number of leaves on a tree, wind velocity\nscalar, vector, scalar\nscalar, scalar, vector\nvector, scalar, scalar\nvector, scalar, vector

Answer

Explanation:

Step1: Analyze Question 1

Velocity is a vector. Let the original velocity be $v_{player}$. When the player turns and runs in the opposite direction twice as fast, the new velocity is $- 2v_{player}$.

Step2: Analyze Question 2

Mass and number of leaves are scalar - they have only magnitude. Wind velocity is a vector - it has both magnitude and direction.

Answer:

Question 1: C. $v_{player}, - 2v_{player}$ Question 2: B. scalar, scalar, vector