topic 4

please ans me all and give me right ans.

Item 1 1 of 14 Review | Constants Part A What average force is required to stop a 1700 kg car in 7.0 s if the car is traveling at 80 km/h ? Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the direction opposite to the initial velocity. HA ? F = 8228 N Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remainingItem 2 2 of Review | Cor Part A A 13.0 kg bucket is lowered vertically by a rope in which there is 170 N of tension at a given instant. Determine the magnitude of the acceleration of the bucket. Express your answer to two significant figures and include the appropriate units. ? a= Value Units Submit Request Answer V Part BItem 3 3 of 14 Review | Constants V Part A A box weighing 74.0 N rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. (Figure 1) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 30.0 N. Express your answer to three significant figures and include the appropriate units. HA ? FBTI = Value Units Submit Request Answer Part B Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 60.0 N. Express your answer to three significant figures and include the appropriate units. ? Figure 1 of 1 > FBT2 = Value UnitsA DOX weighing /4.0 IN rests on a table. A rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. (Figure 1) Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 30.0 N. Express your answer to three significant figures and include the appropriate units. HA ? FBTI = Value Units Submit Request Answer Part B Determine the force that the table exerts on the box if the weight hanging on the other side of the pulley weighs 60.0 N. Express your answer to three significant figures and include the appropriate units. HA ? Figure