Asled is pushed along an ice covered lake. it has some initial velocity before coming to rest in 15m. it took 23 seconds before the sled and rider came to a rest. if the rider and sled have a combined mass of 52.5 kg, what is the magnitude and direction of the stopping force? what do we call the stopping force?

Question 11 of 13 (1 point) jump to question: a stairway, ladder, or ramp must be present in excavations in which of the following situations? a. all trenches must have access/egress b. the trench is more than 15 feet wide but only 1 ½ feet deep c. the trench is more than 4 feet deep and the devices must be within 25 feet of all workers

If anyone who can me with this hw? i would really appreciate it

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.