A backpack on a frictionless table experiences a pull to the left of 60 N and a pull to the right of 30N.  If the backpack experiences a change of velocity from rest to 1.5 m/s in 0.5 s, what is its mass?

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: According to the Newton’s second law, F=maa=Fm=4.3×105 N3.56×105 kg=1.208 m/s2

Q: A football player leaps at a speed of 3.5 m/s toward a second football player, who is moving at 1.5…

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Q: The two masses in the figure are released from rest. After the 5.0 kg mass has fallen 1.5 m, it is…

A: According to the kinematics equation, find the acceleration. Substitute the values,

Q: An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the…

A: mass of astronaut (m) = 113 kg Mass of bag of tools (m') = 10 kg Initial velocity of astronaut with…

Q: moving the box, and have been moving it at 0.73 m/s. You back away, removing your applied force, and…

A: Given problem is based on the theory of friction. When two bodies slip over each other the force of…

Q: A 0.5 kg soccer ball going 30 m/s is headed in the opposite direction 20 m/s. The interaction…

A: It is given that

Q: The m = 420 gg mass in (Figure) is pushed across the 2.0-m-long cart by a 3.0 N force, starting at…

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Q: A soccer ball of mass 0.4 kg, initially at rest, acquires a speed of 5 m/s immediately after being…

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Q: An object with mass m = 34 kg is pushed with 452 N of force to be moved across a distance of 4.6 m…

A: Given data: The mass is m=34 kg The applied force is F=452 N The displacement is s=4.6 m The…

Q: A 0.140-kg baseball is dropped from rest. It has a speed of 1.20 m/s just before it hits the ground,…

A: Given : m = 0.140 kg vi = -1.20 m/s (negative because of downward motion) vf = 1.00 m/s dt = 0.0140…

Q: Papa Smurf (whose mass is 1kg) is sliding at 1.0 m/s over an icy pond that has no friction.  A force…

A: From Newton’s 2nd law, the expression of the force is given as, Here, m and a represent the mass…

Q: A 1200 kg car is traveling at 3.0 m/s and strikes a wall. The car bounces off the wall with a…

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Q: A box is hanging at rest from the ceiling by two ropes. The rope on the left (Rope 1) forms a…

A: Recall  For the equilibrium of the box∑Fx=0∑Fy=0

Q: a stationary block explodes into two pieces L and R that slide across a frictionless floor and then…

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Q: Your mass is 69.6 kg, and the sled s mass is 20.9 kg. You start at rest, and then you jump off the…

A: person's mass, mp=69.6 kgmass of sled, ms=20.9 kginitial speed of both person and sled together, u =…

Q: An unfortunate astronaut loses his grip during a spacewalk and finds himself floating away from the…

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Q: Your mass is 73.5 kg, and the sled s mass is 18.7 kg. You start at rest, and then you jump off the…

A: We know that the momentum must remain conserved. Hence m1v1+m2v2=m1v1'+m2v2'

Q: 14.47-kg block is moving at a speed of 9.72 m/s. What is the force required in Newtons to bring the…

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Q: Xyrus throws a 0.15-kg rubber ball down onto the floor. The ball's speed just before impact is 6.5…

A: Force is defined as the rate of change of momentum.        F= dP/dt  P= m*v

Q: A 2.0-kg object has a velocity of 4.0i ^ m/s at t = 0. A constant resultant force of (2.0i ^ + 4.0j…

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Q: A 47.7-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A: Given: The mass of the skater is 47.7 kg. The initial velocity of the skater is 0 m/s. The final…

Q: how would you sovle this>?

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Q: I push on a wall with a force of 22.7 Newtons. My mass is 83 kilograms, and I am balancing a ball…

A: Solution: Given that F = 22.7 N m = 83 kg m of ball = 10.9 kg

Q: Helicopter drops a 0.30 kg copper ball onto a steel plate. The ball's velocity just before impact…

A: Mass of copper ball, m = 0.30 kg Velocity just before impact and after are 4.5 m/s and 4.2 m/s,…

Q: A pickup truck has a mass of 874.05kg. It travels with a velocity of 21.361m/s before it hits a…

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Q: a pebble of mass 1g exerts a force with magnitude F=1N on Godzilla, whose mass is 10000 kg. the…

A: Given data The mass of pebble is, mb= 1 g The mass of the Godzilla is, mG= 10000 kg The force exerts…

Q: A vehicle with a mass of (3482.44)kg is being tested for its engine consumption by measuring the…

A: Consider the figure describing the given situation.     Here, F represents the force needed to move…

Q: Force Vectors Use interior String Number Mass Attached (kg) Force Exerted (N)  Direction (°) 1…

A: given:mass m1=250g = 0.250 Kgmass m2 = 250 g = 0.250 Kgmass m3 =350 g = 0.350 Kg direction: from…

Q: A 10 kg object starts from rest and achieves a speed of 20 m/s in 10 s. How much force (in N) acted…

A: Mass of the object m=10 kg The initial speed of the object u =0 m/s The final speed of the object v=…

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: case 1the deceleration is given by

Q: A teenager is pushing a cart.  There is no friction between the cart and the ground. Mass of the…

A: Given: No friction between the cart and the ground Mass of cart Mc=120kg Initial velocity Vi =0 Cart…

Q: A net (unbalanced) external force of 100.0 N acts on an object of mass 20.0 kg whose initial speed…

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Q: Jane, who has a mass of 81.0 kg, is riding at 15.0 m/s in his new car when she must suddenly slam on…

A: Mass m= 81 kg Initial speed = 15 m/s Final speed = 0 m/s Time = 0.5 s Acceleration = (final speed -…

Q: Your mass is 73.3 kg, and the sled s mass is 10.1 kg. You start at rest, and then you jump off the…

A: Given  Mass of man (M) = 73.3 kg Mass of sled (m) = 10.1 kg speed of sled when man jumps from it v…

Q: Determine the value of P and N given that the box is at rest and if theta is equal to 45.  P = 122…

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Q: A 2,200 kg car moving westward with a velocity of 22 m/s collides with a tree and is brought to rest…

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Q: An astronaut with a mass of 70 kg is outside a space capsule when the tether line breaks.  To return…

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Q: You have a tray of mass 100 grams which is loaded with an additional 200 grams. It is attached via a…

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Q: Zach, whose mass is 80 kg, is in an elevator going down at 2.0 m/s. The elevator takes 4.0 s to…

A: Given, the zach whose mass is 80 kg, is in an elevator going downat 2.0 m/s. The elevator takes 4.0…

Q: A teenager is pushing a cart.  There is no friction between the cart and the ground. Mass of the…

A: given:mass of cart m=120 Kg initial velocity u=0 m/s (at t=0) final velocity v at t=5 sec from 0 to…

Q: The 2022 Chevy Corvette has a mass of 1600 kg. If it were travelling at 31 m/s in the positive…

A: We have givenMass of  Chevy corvette (m)=1600 kgInitail velocity (u)=31 m/sNet stopping force =17000…

Q: A high jumper with a body weight of 900N exerts an average vertical force of 2150N down on the floor…

A: Given Data: The weight of a high jumper is: W=900 N The average force applied by the jumper to the…

Q: A small diamond of mass 13.3 g drops from a swimmer's earring and falls through the water, reaching…

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Q: Dan is gliding on his skateboard at 2.56 m/sm/s . He suddenly jumps backward off the skateboard,…

A: SOlution: given that vi, Dan = 2.56 m/s mDan = 42.1 kg mskatboard = 5.99 kg vf, Dan = 6.22 ms t…

Q: Leo, who has a mass of 72.0 kg, is riding his rollerblades when he collided with the wall. The wall…

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Q: . Mass of the cart is 120 kg. Cart is initially at rest (at time = 0 s). Direction to the right is…

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Q: Your mass is 92.6 kg, and the sled s mass is 17.1 kg. You start at rest, and then you jump off the…

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Q: A 49.2-kg skater is standing at rest in front of a wall. By pushing against the wall she propels…

A: