Physics help

Question 1 (1 point) Saved The area under a velocity-time graph represents O a) acceleration O b) displacement Oc) instantaneous velocity O d) distance O e) average velocity Question 2 (1 point) Saved Which of the following graphs depicts uniform motion? B D E O a) A and B ( b) C and D O c) A and C O d) B and D e) E onlyQuestion 3 (2 points) Match the calculation with the quantity it determines. the area under a velocity- time graph 1. acceleration the slope of an acceleration-time graph 2. jerk the slope of a position-time 3. velocity graph the area under an 4. change in velocity acceleration-time graph 5. displacement the slope of a velocity-time graph Question 4 (2 points) Which of the following measurements is a scalar quantity? O a) the tension in an elevator cable b) the acceleration of a car along a test track O c) the instantaneous velocity of a parachutist in free fall O d) the displacement of a hiker from her base station Oe) the measured distance between Toronto and MontrealQuestion 5 (2 points) Three boats set out to cross a river that has a current. The speed of the three boats relative to the water is the same. Boat A points at an angle of 30 upstream from a point directly across the river. Boat B points directly across and boat C points 20 downstream from a point directly across the river. Match the boat with the relative time it takes to cross. moderate time 1. B least time 2. A 3. C most time Question 6 (2 points) Three identical objects are thrown from the same height through a window at the same time. Object A is thrown horizontally at 4.0 m/s, object B is thrown horizontally at 8.0 m/s, and object C is simply dropped. If air resistance is negligible, which object will reach the ground first? O a) object A Ob) object B O d object C O d) objects B and C will land first and together Oe) all three will land at the same time