1. A box weighing 9 Newtons is lifted 36.0 meters. How much work did it take to lift the box? 2.A motor that used 10 Joules of energy to move a robot’s arm 5.0 meters. How much force did the robot use?

3.A robot that weighs 20 Newtons walked across the lab to the other side and used 60 Joules of energy. How far did the robot walk?

4. A robot is pushing on a car with a force of 10 Newtons. The car does not move. How much work has
the robot done?

The table shows the total distance that myra runs over different time periods. which describes myra’s distance as time increases? increasing decreasing zero constant

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)