a) How much work is required to lift a 2.5-kg concrete blockto a height of 1.5 m

Question

a) How much work is required to lift a 2.5-kg concrete blockto a height of 1.5 m._____J b) A man pushes a lawn mower on a level lawn with a force of212N. If 52% of this force is directed downward, how much work isdone by the man in pushing the mower 4.8 m._____J c) A 1045 kg automoble is pulled by a horizontal tow line witha net force of 869 N. What is the acceleration of the auto?_____m/s^2 a) How much work is required to lift a 2.5-kg concrete blockto a height of 1.5 m._____J b) A man pushes a lawn mower on a level lawn with a force of212N. If 52% of this force is directed downward, how much work isdone by the man in pushing the mower 4.8 m._____J c) A 1045 kg automoble is pulled by a horizontal tow line witha net force of 869 N. What is the acceleration of the auto?_____m/s^2

Explanation / Answer

A) W = Fd W = 2.5 * 9.8 * 1.5 = 36.75J B) 212 *.52 = 110.24N W = Fd = 110.24N * 4.8m = 529.15J C) Fnet = ma a = Fnet/m a = 869N/1045kg = 0.832m/s2 Hope that helps Hope that helps

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.