Unit Test — Unit test Answers
directionmagnitudetimemotion
The formulas used to analyze the horizontal and vertical motion of projectiles launched at an angle involve the use of which function(s)?
The chart shows data for a moving object.
A helicopter flies 250 km on a straight path in a direction 60° south of east. The east component of the helicopter’s displacement is km.
An object moving north with an initial velocity of 14 m/s accelerates 5 m/s2 for 20 seconds. What is the final velocity of the object?
A jogger runs 5.0 km on a straight trail at an angle of 60° south of west. What is the southern component of the run rounded to the nearest tenth of a kilometer?
The diagram shows two sets of vectors that result in a single vector.
Ingrid is participating in a relay race. While jogging at 9 km/h, she tosses a relay stick at 16 km/h to her teammate, who is standing still.
Sung rolls a marble off the edge of a table. She rolls the marble off the same table again but at a different speed.
The diagram shows components that have been added together to form Rx and Ry. Rx and Ry are the components of the resultant vector.
Ingrid kicks a football with an initial velocity of 12 m/s at an angle of 45° relative to the ground.The horizontal component of the initial velocity to the nearest tenth is m/s.
Suppose two initial vectors intersect at a right angle and form a resultant vector. The magnitudes of one initial vector, A, and the resultant vector, R, are given.
A train moving west with an initial velocity of 20 m/s accelerates at 4 m/s2 for 10 seconds. During this time, the train moves a distance of meters.
What does the x represent on a motion map?
distancetimemotiondisplacement
The diagram shows a motion map.
Simon is riding a bike at 12 km/h away from his friend Keesha. He throws a ball at 5 km/h back to Keesha, who is standing still on a sidewalk.
Rhea is running towards Sean and kicks a soccer ball to him. Sean is standing still.
A baseball is launched horizontally from a height of 1.8 m. The baseball travels 0.50 m before hitting the ground.How fast is the baseball moving horizontally, rounded to the nearest hundredth? m/s
Why is a baseball thrown by a pitcher considered to have projectile motion?
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