Vectors

• (0, 4)
• (2, 3)
• (1, 4)
• (5, 1)

• 90
• 180
• 270
• 309

• 4

• 6

• 7

• 5

• (5, 8.66)
• (6, 8)
• (10, 0)
• (0, 10)

Find the following value  3a-2b  for

a =〈2, 5〉, and b=〈1, -2〉

• <2, 10>
• <5, 15>
• <4, 19>
• <1, 7>

• 25
• 10
• 30
• 15

A player kicks a football so that it leaves the ground with a velocity of 13 feet per second at an angle of 33 with the ground. Find the magnitude of the horizontal and vertical components of the velocity.

• Horizontal component: 12.0 ft/s, Vertical component: 7.0 ft/s
• Horizontal component: 8.5 ft/s, Vertical component: 4.2 ft/s
• Horizontal component: 9.0 ft/s, Vertical component: 5.5 ft/s
• Horizontal component: 10.9 ft/s, Vertical component: 7.1 ft/s

State whether each quantity described is a vector quantity or a scalar quantity.

 

a box being pushed with a force of 125 newton.                 

• Scalar quantity
• Weight of the box
• Vector quantity
• Force magnitude

State which quantity described is aa scalar quantity.

 

                 

1. wind blowing at 20 km/h due east.                                                           

2. 2. a deer running 15 meters per second due west.                     

3.   a baseball thrown with a speed of 136 km/h.                         

4.   a 15-Newton tire hanging from a rope.                                         

• a baseball thrown with a speed of 136 km/h.
• a car traveling at 60 km/h north.
• a person walking 5 km/h in a straight line.
• a train moving at 80 km/h towards the station.