Homework Answers
8) Ans : E Truck exert same ammount on car of force as car exert on truck
9) Ans : D
10) Ans : D
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A large truck collides head-on with a small compact car. During the collision: (A) the truck...
DQuestion 10 1 pts Q01: A large truck collides head-on with a small compact car. During...
DQuestion 10 1 pts Q01: A large truck collides head-on with a small compact car. During the collision: the truck exerts a greater amount of force on the car than the car exerts on the truck O the truck exerts a force on the car but the car does not exert a force on the truck; O neither exerts a force on the other, the car gets smashed simply because it gets in the way of the truck; Othe car...
Questions 16-20 refer to the following situation: A heavy semi-truck collides head-on with a small
Questions 16-20 refer to the following situation: A heavy semi-truck collides head-on with a small, light car \(\left(m_{\text {car }}<m_{\text {truck }}\right)\). Before the collision the vehicles were moving with the same speed but in opposite direction.During the collision, is the force that the car exerts on the truck greater, equal or less than the force that the truck exerts on the car?There is not enough information to determine the answer.It is greater than the force exerted by the truck...
8) A car is pushing a large truck, such that both accelerate. Which is true? A)...
8) A car is pushing a large truck, such that both accelerate. Which is true? A) The contact force the car exerts on the truck is larger than the contact force the truck exerts on the car. B) The contact force the truck exerts on the car is larger than the contact force the car exerts on the truck. C) The non-zero contact force of the truck on the car is equal to the contact force of the car on...
Most of us know intuitively that in a head-on collision between a large dump truck and...
Most of us know intuitively that in a head-on collision between a large dump truck and a subcompact car, you are better off being in the truck than in the car. Why is this? Many people imagine that the collision force exerted on the car is much greater than that experienced by the truck. To substantiate this view, they point out that the car is crushed, whereas the truck in only dented. This idea of unequal forces, of course, is...
don a sled starts from rest at the top of a 15.0° slope. If the trip...
don a sled starts from rest at the top of a 15.0° slope. If the trip to the bottom takes 2 s, how long i A) 586 mB) 293 m C) 1130 m D) 147 m 2) Two children fighting over a toy pull on the toy in different directions. One child pulls to the north with a force of 5.3 N, and the other child pulls to the east with a force of 6.3 N. What is the magnitude...
A block of mass “m” sits on a (bigger) block of mass “4m” that is on...
A block of mass “m” sits on a (bigger) block of mass “4m” that is on a frictionless table. The coefficients of friction between the two blocks are μs (static) and μk (kinetic). Assume that a horizontal force “F” is applied to the block on top (i.e. the smaller block with mass “m”). The force “F” is variable. The figure below is representative of this scenario. (You may use m = 10 kg, μs = 0.8, μk = 0.6, and...
Linear Momentum of an object is conserved At all times b. Only when the net external...
Linear Momentum of an object is conserved At all times b. Only when the net external force on the object is Zero When the net external torque on the object is Zero d. Never A truck of mass 4000 (kg) is moving at 10 (m/s). A car of mass 1000 (kg) is moving at 40 (m/s). So, the truck’s momentum, compared to the car, is Greater b. Smaller c. the same d. Cannot say without knowing their accelerations A 1000...
Q1) Answer all Multiple Choice questions.i) Newton’s 1st law is:A. PHYSICALLY INDEPENDENT of the...
Q1) Answer all Multiple Choice questions.i) Newton’s 1st law is:A. PHYSICALLY INDEPENDENT of the other two laws
of motion and CANNOT be dispensed with as an axiom
of Newtonian physics.B. PHYSICALLY INDEPENDENT of the other two laws
of motion, but nonetheless it CAN be dispensed
with as an axiom of Newtonian physics.C. Actually a SPECIAL CASE of the 2ND LAW. The
case when the net force is zero. Therefore, logically we need only
two laws of motion. Perhaps for clarity...
3. A very thin circular hoop of mass m and radius r is made to roll,...
3. A very thin circular hoop of mass m and radius r is made to roll, without slipping, down a ramp with an angle of inclination (with respect to the horizontal), as shown in the figure below. See Figure 3. Note: The moment of inertia of the thin circular hoop is given by: I houp = mra Consider a system consisting of a ladder with a painter climbing said ladder. The ladder has a length 1 = 5,00 meters and...
Many of the bones of the body have an English name as well as a medical...
Many of the bones of the body have an English name as well as a
medical name, i.e., skull (cranium). List as many of these as you
can.
for each multiple-choice question. 1. A cart of mass 4 kg experiences a constant acceleration of 3.0" What is the magnitude of the force exerted on the cart? A. 0.75 N B. 6.0 N C. 2N D3N 2. Displacement vector is 6.0 miles along the negative x-axis and a second displacement vector...
DQuestion 10 1 pts Q01: A large truck collides head-on with a small compact car. During the collision: the truck exerts a greater amount of force on the car than the car exerts on the truck O the truck exerts a force on the car but the car does not exert a force on the truck; O neither exerts a force on the other, the car gets smashed simply because it gets in the way of the truck; Othe car...
Questions 16-20 refer to the following situation: A heavy semi-truck collides head-on with a small, light car \(\left(m_{\text {car }}<m_{\text {truck }}\right)\). Before the collision the vehicles were moving with the same speed but in opposite direction.During the collision, is the force that the car exerts on the truck greater, equal or less than the force that the truck exerts on the car?There is not enough information to determine the answer.It is greater than the force exerted by the truck...
8) A car is pushing a large truck, such that both accelerate. Which is true? A) The contact force the car exerts on the truck is larger than the contact force the truck exerts on the car. B) The contact force the truck exerts on the car is larger than the contact force the car exerts on the truck. C) The non-zero contact force of the truck on the car is equal to the contact force of the car on...
don a sled starts from rest at the top of a 15.0° slope. If the trip to the bottom takes 2 s, how long i A) 586 mB) 293 m C) 1130 m D) 147 m 2) Two children fighting over a toy pull on the toy in different directions. One child pulls to the north with a force of 5.3 N, and the other child pulls to the east with a force of 6.3 N. What is the magnitude...
Q1) Answer all Multiple Choice questions.i) Newton’s 1st law is:A. PHYSICALLY INDEPENDENT of the other two laws
of motion and CANNOT be dispensed with as an axiom
of Newtonian physics.B. PHYSICALLY INDEPENDENT of the other two laws
of motion, but nonetheless it CAN be dispensed
with as an axiom of Newtonian physics.C. Actually a SPECIAL CASE of the 2ND LAW. The
case when the net force is zero. Therefore, logically we need only
two laws of motion. Perhaps for clarity...
3. A very thin circular hoop of mass m and radius r is made to roll, without slipping, down a ramp with an angle of inclination (with respect to the horizontal), as shown in the figure below. See Figure 3. Note: The moment of inertia of the thin circular hoop is given by: I houp = mra Consider a system consisting of a ladder with a painter climbing said ladder. The ladder has a length 1 = 5,00 meters and...
Many of the bones of the body have an English name as well as a
medical name, i.e., skull (cranium). List as many of these as you
can.
for each multiple-choice question. 1. A cart of mass 4 kg experiences a constant acceleration of 3.0" What is the magnitude of the force exerted on the cart? A. 0.75 N B. 6.0 N C. 2N D3N 2. Displacement vector is 6.0 miles along the negative x-axis and a second displacement vector...
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