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# MUST ANSWER ALL PLEASE!!! Jack starts walking east (+x-direction) at a pace of 2 m/s. Jill,...

## Question

###### MUST ANSWER ALL PLEASE!!! Jack starts walking east (+x-direction) at a pace of 2 m/s. Jill,...

Jack starts walking east (+x-direction) at a pace of 2 m/s. Jill, who is very upset with Jack, is running west (- x-direction) towards him at a rate of 4 m/s and is initially 200 meters to the east of Jack when she sees him. When and where does she run into him? Cannot be determined. OB x f- 66.7 m and tf- 33.3 sec Ocxf 33.3 m and t f-66.7 sec OD x f-66.7 mandtf- 66.7 sec QUESTION 10 Bill and Ted are standing on a bridge 40 ft above a river. Bill drops a stone, while Ted decides to throw a stone downward at 10 m/s. How long after Bill released his rock should Ted throw his if they want the stones to hit the water simultaneously? Choose answer closest to calculated result. A delLt 15.5 sec B. Cannot be determined. OC delLt-o.86 sec D delt o.72 sec
Consider a particle initially at x-0-2.0 m and moving with initial velocity v0--3.0 m/s. Assuming constant acceleration a = 5.0 m/sA2, find the particle's position and velocity at t 1.0 sec OA. 15/2 m and 5 m/s OB. 15/2 m and 2 m/s OC.3/2 m and 2 m/s D. Not enough information. QUESTION 8 A car is travelling at 80 mph when the driver sees traffic stopped 100 meters ahead. What acceleration is needed to stop the car in order to avoid a crash? Choose the answer closest to your calculated results. Be careful of units given and Sl acceleration units! OA. +6.5 m/s 2 0 B.-32 m/s^2 OC. Not enough information. D..6.5 m/s2
QUESTION 2 Covert the following density from units of g/cmA3 to kg/mA3 (rho is the density): ho 4.81 g/cmA3 A. 0.00481 kg/mA3 OB. 481 kg/m3 OC.4810 kg/m3 D. Cannot be determined. QUESTION 3 Assume we would like to purchase flooring for a room of length (L) 8.9ft and width (W) 14.21ft. What is the area of the room in mA2 (be careful of units!). 1ft 0.304m. Pick the answer closest to your calculated result. A 12 mA2 B. 126.5 mA2 °C, 130 m ^2 D. What is a floor?

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