Q4: An object has a kinetic energy of 250 J and a momentum of magnitude 25.0 kg. m/s. Find the mass of the object. A. 1.14 kg B. 1.25 kg C. 1.04 kg D. 1.39 kg m. Q5: A car of mass 1600 kg collides with a wall as shown in the figure. The initial and final velocities of the car are ₁-15,01m/ V=2.61 m/s, respectivalu H T!! m Befor

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Chapter1: Units, Trigonometry. And Vectors
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Q3: A block of mass m₁ = 1.6 kg initially moving to the right with a speed of 4.0 m/s on a frictionless,
horizontal track collides with a light spring attached to a second block of mass m₂ = 2.1 kg
initially moving to the left with a speed of 2.5 m/s as shown. The spring constant is 600 N/m.
Calculate the velocity of the mass m₂ after the collision.
A. 3.12 m/s
B. 2.26 m/s
C. 1.82 m/s
D. 2.69 m/s
Q4: An object has a kinetic energy of 250 J and a momentum of magnitude 25.0 kg m/s.
Find the mass of the object.
A. 1.14 kg
B. 1.25 kg
C. 1.04 kg
D. 1.39 kg
₁ = 4.01 m/s ₂ = -2.5 m/s
A. 2.8 x 10*1 kg. m/s.
B. 2.5 x 104 1 kg. m/s
C. 2.1 x 10 1 kg. m/s
D. 3.2 x 10¹1 kg. m/s
Q5: A car of mass 1600 kg collides with a wall as shown in the figure. The
initial and final velocities of the car are V₁ = -15.01 m/s and
V = 2.61 m/s, respectively. Find the impulse delivered to the car.
Q6: A 4.0 kg particle moves from the origin to position C, having
coordinates x = 5.0 m and y = 5.0 m. One force on the particle is
the gravitational force acting in the negative y direction.
Calculate the work done by the gravitational force on the
particle as it goes from 0 to C.
A. -98 J
B. -147 J
C. -245 J
D. -196 J
I.
A. F=(-21-31) N
B. F=(-71+00) N
C. F=(71-31) N
D. F=(-291-241) N
y (m)
-15.0 m/s
+2.50 m/s
1;
Aller
(5.0,5.0)
x (m)
Q7: A potential energy function for a system in which a two-dimensional force act is of the form
U = 3x³y-7x. Where U is measured in Joules. Calculate the force that acts at point (1,0) m.
Transcribed Image Text:Q3: A block of mass m₁ = 1.6 kg initially moving to the right with a speed of 4.0 m/s on a frictionless, horizontal track collides with a light spring attached to a second block of mass m₂ = 2.1 kg initially moving to the left with a speed of 2.5 m/s as shown. The spring constant is 600 N/m. Calculate the velocity of the mass m₂ after the collision. A. 3.12 m/s B. 2.26 m/s C. 1.82 m/s D. 2.69 m/s Q4: An object has a kinetic energy of 250 J and a momentum of magnitude 25.0 kg m/s. Find the mass of the object. A. 1.14 kg B. 1.25 kg C. 1.04 kg D. 1.39 kg ₁ = 4.01 m/s ₂ = -2.5 m/s A. 2.8 x 10*1 kg. m/s. B. 2.5 x 104 1 kg. m/s C. 2.1 x 10 1 kg. m/s D. 3.2 x 10¹1 kg. m/s Q5: A car of mass 1600 kg collides with a wall as shown in the figure. The initial and final velocities of the car are V₁ = -15.01 m/s and V = 2.61 m/s, respectively. Find the impulse delivered to the car. Q6: A 4.0 kg particle moves from the origin to position C, having coordinates x = 5.0 m and y = 5.0 m. One force on the particle is the gravitational force acting in the negative y direction. Calculate the work done by the gravitational force on the particle as it goes from 0 to C. A. -98 J B. -147 J C. -245 J D. -196 J I. A. F=(-21-31) N B. F=(-71+00) N C. F=(71-31) N D. F=(-291-241) N y (m) -15.0 m/s +2.50 m/s 1; Aller (5.0,5.0) x (m) Q7: A potential energy function for a system in which a two-dimensional force act is of the form U = 3x³y-7x. Where U is measured in Joules. Calculate the force that acts at point (1,0) m.
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