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please help me solve the following questions. I think Ive got the answers for a-d. But I don't understand question e). please explain the steps for each question |
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Answer» 54.3N Explanation: FRICTIONAL force is given by (ų)(N) Where ų is coefficient of friction and N is normal force Hence Friction=45N F-45=15a where F is the constant force F=45+15a----(1) Since distance(s)=5m Time(t)=4s Initial velocity(U)=0 Using s=ut+0.5(a)(t^2) 5=8a a=8/5----(2) Using (1) and(2) We get F =54.3N Hope this answer helped you |
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