Go over homework from September 1, 2021 (We)

Motion in Two Dimensions

• Sec. 3.2, p. 61, Serway: Two-Dimensional Motion• Sec. 3.3, p. 69, Serway: Relative Velocity

PHY 311September 3, 2021 (Fr) - Today’s Agenda

Homework For Next Time

Homework assigned September 3, 2021 (Friday) due September 6, 2021 (Monday)

Read:

Newton’s Laws of Motion (Topic 4, pp. 80-120, Serway)

V3724 (Fr)

PHY 311 Homework due September 3, 2021 (Friday)

Given:

An object is launched from the ground at a velocity of 20 m/s at an angle of 25 ° upward with the horizontal ground.

y

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Ground

Questions:

a.) What is the object's maximum height above the ground in meters? b.) What is the total flight time (time in the air) of the object in seconds? c.) How far does the object travel horizontally, in meters, before hitting the ground? d.) What is the magnitude of the velocity, in meters/second, just before it hits the ground?

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