Take Test: Quiz 82-PHN-201 x take/launch.jsp?course i assessment id 134304 1&cou

Question

Take Test: Quiz 82-PHN-201 x take/launch.jsp?course i assessment id 134304 1&course, id-184409 1&content ida 297510 QUESTION 12 O Farce is proportional to the displacement of an object O A net force on an object is proportional to the mass (mo simes the acclerationa of the ooject An object conainues in a state of rest or in a sane of motion at a consane speed if a force is acting on it. A net force on an obje i proportional so the acceleration (a) dided by the mass (rej of the object QUESTION 13 2 p Displacement is a vector True O Fase QUESTION 14 in the amusemene park ride known as Magc Mountain Superman, powerful magnets acceeate a care and ies riders from rest oo 30 ms in a time of .Os the combines mass of the car and riders i 5 OPg Rnd the average net force eserned on the car and riders by the magnes? 22x102 N 310N

Explanation / Answer

Newton's second law syas that

Fnet = mass*acceleration

Correct option is B.

2.

dispkacement is vector quantity

3.

Using 1st kinematic equation acceleration of car will be

V = U + a*t

a = (V - U)/t

a = (30 - 0)/5= 6.0 m/sec^2

Now from Newton's 2nd law:

Fnet = m*a = 5.5*10^3*6

Fnet = 33000 N = 3.3*10^4 N

Correct option is C.

Please Upvote.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

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