A woman attached to a bungee cord jumps from a bridge that is 26 m above a river. Her height in meters above the river t seconds after the jump is y(t) = 13 (1 + e cost), for t≥ 0. a. Determine her velocity at t= 1 and t=4. b. Use a graphing utility to determine when she is moving downward and when she is moving upward during the first 10 s. c. Use a graphing utility to estimate the maximum upward velocity.

4. In the velocity selector shown in Figure , electrons with speed v = E/B follow a straight path. Electrons moving significantly faster than this speed through the same selector will move along what kind of path? (a) a circle (b) a parabola (c) a straight line (d) a more complicated trajectory (e) none of those answers.

7. What is the difference between a vector and a scalar quantity?

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An object is moving with a speed 83 ft/h find its speed in the units of m/s. use 1ft 0.304 m Select one: O A. 0.007 OB. 25.23 OC.7.01 OC.7.01 OD. 90.84 OE 0.02

47.01 1 P V:1E Ooredoo li. 1 The time of fall (t) of a free falling object is directly proportional to the height (h) Select one: True False

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We amagde te posey dcton and hasa poveden nd han The -A+ Find the magude of the er Express y anring twgnican figs a Sub eustA

Motion sensors recorded the graphed data about a runner during a warm up. During which segment of the activity did the runner have the greatest velocity?

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