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D Question 1 1 pts A 1186 kg car starts from rest. A constant force of...
Question 3 A 776 kg car starts from rest. A constant force of 319 N acts...
Question 3 A 776 kg car starts from rest. A constant force of 319 N acts on it. What is the distance (in m) it travels in 3 s? Enter a number with two digits behind the decimal point.
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest...
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
Help 6. A 2370 kg airplane starts from rest and, with a constant acceleration of 5.0...
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6. A 2370 kg airplane starts from rest and, with a constant acceleration of 5.0 m/s, reaches its takeoff speed in 9.00 s. a. What is the net force on the airplane during this time? b. What is the airplane's takeoff speed? c. How far down the runway does the airplane travel before taking off? 7. A train engine pulls a freight car that has a mass of 5.0 x 10 kg with a constant force. The freight car...
Question 1 (30 pts) The 20 kg block starts from rest at point A, slides down...
Question 1 (30 pts) The 20 kg block starts from rest at point A, slides down the plane through the pool. The friction forces acting to the block arc 20 N on the place and Go N on the water. Find the speed of the black when it travels 2) me the water (all wint). 25
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration...
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
Two forces act on a 3.20 kg object, the gravitational force and a second, constant force....
Two forces act on a 3.20 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s is displaced (4.251 - 3.301) m. Write the second force in unit vector notation. (Enter your answer in kg. m/s. Assume the gravitational force acts in the - direction.) = (18.888)i + (17.152); First, find the acceleration vector using kinematics, then substitute into Newton's second law to determine the unknown force vector. Recall that the...
A 140 kg barrel that is initially at rest is pushed by a constant net force...
A 140 kg barrel that is initially at rest is pushed by a constant net force of 40N. The barrel travels 200cm in 5 s. The acceleration of the barrel is 0.25 m/s?. Calculate the increase in kinetic energy during the 5 s. 7. Two objects are hung from strings (figure). The top object (ml) has a mass of 15 kg and the bottom object(m2) has a mass of 10 kg. Calculate the tension in each string. [A-5] String A...
D Question 8 1 pts An object's velocity in the positive x-direction changes from 2.5 m/s...
D Question 8 1 pts An object's velocity in the positive x-direction changes from 2.5 m/s to 8.7 m/s in 3.6 s A force of constant magnitude 18 N is acting on it. What is the object's mass in kg? Enter a number with two digits behind the decimal point.
A 2.1 ✕ 103-kg car starts from rest at the top of a 5.5-m-long driveway that...
A 2.1 ✕ 103-kg car starts from rest at the top of a 5.5-m-long driveway that is inclined at 16° with the horizontal. If an average friction force of 4.0 ✕ 103 N impedes the motion, find the speed of the car at the bottom of the driveway. m/s
A 2.1 ❝ 103-kg car starts from rest at the top of a 4.8-m-long driveway that...
A 2.1 ❝ 103-kg car starts from rest at the top of a 4.8-m-long driveway that is inclined at 23° with the horizontal. If an average friction force of 4.0 ❝ 103 N impedes the motion, find the speed of the car at the bottom of the driveway.
Question 3 A 776 kg car starts from rest. A constant force of 319 N acts on it. What is the distance (in m) it travels in 3 s? Enter a number with two digits behind the decimal point.
Question 13 1 pts A horizontal force of 5 N accelerates a 4-kg object from rest at 0.5 m/s2. What friction force acts on the object? +3N -3N O+2N 0-2N Question 14 1 pts An object that is acted upon by a net force of 20 N is moving with an acceleration of 10 m/s2 What is the mass of the object? O2 kg O 20 kg O 0.2 kg 10 kg Question 15 1 pts A person weighing 823...
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6. A 2370 kg airplane starts from rest and, with a constant acceleration of 5.0 m/s, reaches its takeoff speed in 9.00 s. a. What is the net force on the airplane during this time? b. What is the airplane's takeoff speed? c. How far down the runway does the airplane travel before taking off? 7. A train engine pulls a freight car that has a mass of 5.0 x 10 kg with a constant force. The freight car...
Question 1 (30 pts) The 20 kg block starts from rest at point A, slides down the plane through the pool. The friction forces acting to the block arc 20 N on the place and Go N on the water. Find the speed of the black when it travels 2) me the water (all wint). 25
12) A sprinter running a 100 m race starts at rest and accelerates at constant acceleration A for 3.0 seconds and then maintains a constant velocity. In terms of A, what is the position of the runner after 3.0 seconds? What is A if the sprinter finishes the race in 12.0 seconds? 13) What force is needed to accelerate a 30.0 lb block at 2.2 m/s2? 14) What force is needed to stop a 1500 kg car in 40 m...
Two forces act on a 3.20 kg object, the gravitational force and a second, constant force. The object starts from rest and in 1.20 s is displaced (4.251 - 3.301) m. Write the second force in unit vector notation. (Enter your answer in kg. m/s. Assume the gravitational force acts in the - direction.) = (18.888)i + (17.152); First, find the acceleration vector using kinematics, then substitute into Newton's second law to determine the unknown force vector. Recall that the...
A 140 kg barrel that is initially at rest is pushed by a constant net force of 40N. The barrel travels 200cm in 5 s. The acceleration of the barrel is 0.25 m/s?. Calculate the increase in kinetic energy during the 5 s. 7. Two objects are hung from strings (figure). The top object (ml) has a mass of 15 kg and the bottom object(m2) has a mass of 10 kg. Calculate the tension in each string. [A-5] String A...
D Question 8 1 pts An object's velocity in the positive x-direction changes from 2.5 m/s to 8.7 m/s in 3.6 s A force of constant magnitude 18 N is acting on it. What is the object's mass in kg? Enter a number with two digits behind the decimal point.
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