you are pushing your two friends in separate swings. both friends have the same mass. if you push friend b…

you are pushing your two friends in separate swings. both friends have the same mass. if you push friend b with twice as much force as friend a, who will have a greater acceleration?\nfriend a\nthey will have the same acceleration\nthere is not enough information to determine who will have a greater acceleration.\nfriend b\nquestion #2\nwhat amount of force must be applied to a car with a mass of 1500 kg to accelerate it at a rate of 5.0 m/s²?\n300 n\n7,500 n\n0.0033 n\n33 n

you are pushing your two friends in separate swings. both friends have the same mass. if you push friend b with twice as much force as friend a, who will have a greater acceleration?\nfriend a\nthey will have the same acceleration\nthere is not enough information to determine who will have a greater acceleration.\nfriend b\nquestion #2\nwhat amount of force must be applied to a car with a mass of 1500 kg to accelerate it at a rate of 5.0 m/s²?\n300 n\n7,500 n\n0.0033 n\n33 n

Answer

Explanation:

Step1: Recall Newton's second - law

$F = ma$, where $F$ is force, $m$ is mass and $a$ is acceleration.

Step2: Analyze the first question

Let the force on friend A be $F_A$ and on friend B be $F_B = 2F_A$, and mass of both $m_A=m_B = m$. From $a=\frac{F}{m}$, for friend A, $a_A=\frac{F_A}{m}$, for friend B, $a_B=\frac{F_B}{m}=\frac{2F_A}{m}=2a_A$. So friend B has a greater acceleration.

Step3: Solve the second question

Given $m = 1500$ kg and $a=5.0$ m/s². Using $F = ma$, we substitute the values: $F=1500\times5.0 = 7500$ N.

Answer:

For the first question: D. Friend B For the second question: B. 7,500 N