A boy of 50kg is standing in a lift moving down with an acceleration 9.8m/s2. The apparent weight of the boy is? a) Zero b) (50×9.8)N c) 50N d) 50/9.8N
Q: A space vehicle that weighs 40000 N on the surface of the Earth (use g = 10 m/s2) is traveling in…
A: Given: weight of space vehicle, W = 40000 N Speed, u = 600 m/s constant opposing force, F = - 12000…
Q: A driver in a 1000.0 kg car traveling at 37 m/s slams on the brakes and skids to a stop. If the…
A: Given data: Mass (m) = 1000.0 kg Initial velocity (u) = 37 m/s Final velocity (v) = 0 m/s…
Q: A cardboard box slides along a wood floor with an initial velocity of 15.0 m/s and comes to rest…
A:
Q: When a 50-kg person steps on a scale in a moving elevator, the scale reads a steady 490 N. Which one…
A:
Q: m = 8 kg μs = 0.5 μk = 0.4 Calculate the maximum mass M that allows the blocks to remain stationary.…
A: Here we shall assume that the mass M is hanging, and the weight due to this hanging mass M is the…
Q: A 12-kg hammer strikes a nail at a velocity of 9 m/s and comes to rest in a time interval of 8.0 ms.…
A: Given that:Mass of hammer, m=12 kgStrike velocity, v=9 m/sTime interval, ∆t=8.0 ms
Q: A box of mass 40 kg, initially at rest, is pushed by a horizontal force of 200 N for 6 sec. The…
A: Given Values - Mass of box (m) = 40 Kg Horizontal force = 200 N Friction force = 20 N Time (t) =…
Q: a 1000.0kg car experiences a net force of 9500N while decelerating from 30.0m/s to 14.9 m/s. How far…
A:
Q: The only force acting on a 1.2 kg body as it moves along the positive x axis has an x component F,-…
A: Given: In this question, the given details are, The only force acting on a 1.2 kg body as it moves…
Q: A hockey puck on a frozen pond is given an initial speed of 20 m/s. If the the coefficient of…
A: The kinematics equation can be used to find the unknown distance covered by the object and the…
Q: A student graph the data obtained from Newton's second law as shown, what is the total mass of the…
A: Given: A student graph is shown as below, The value of the gravitational constant is 99.8m/s and…
Q: If the velocity of a particle is given by v(t) = (500 m/s)e 5t. What force is acting on the particle…
A:
Q: When a mass M experiences a velocity change of v in a time of t, it experiences a force of F.…
A:
Q: A small car crashes into a large SUV in a head-on collision. The car speed before the collision is…
A: Given: A small car collides(head-on collision) with the SUV Also, speed of car = speed of SUV/2
Q: 8. A 10-kg block is set moving with an initial speed of 6 m/s on a rough horizontal surface. If the…
A:
Q: 30 F m
A:
Q: A 50kg box and a 15 kg box are dropped from a 50 m cliff at the same time, from rest. Which of the…
A:
Q: A rope of negligible mass passes through a pulley of negligible mass and friction hanging from the…
A: a=m1-m2m1+m2g
Q: A car of mass, m = 1500 kg going at an initial speed, Vị = 30 m/s exits a main road onto a banked…
A: Given that:- Mass of car=m=1500kg
Q: 5. A velocity vs. time graph for an object is shown. Which best describes the acceleration of the…
A: Given data: The velocity vs time graph Required: The acceleration (a) of the object
Q: Q9. An object (4.0 kg) is moving on a frictionless surface at a constant velocity (4 m/s), how mi…
A:
Q: A 6.0-newton force and an 8.0-newton force act concurrently on a point. What is the min resultant?…
A: NOTE: As per guidelines, I can solve first question only. If you need help with other questions,…
Q: A skier is on a mountain whose slope is 20 °. The coefficient of kinetic friction is 0.22. At a…
A: Concept used: Frictional force acts in direction opposite to direction of motion. Equations of…
Q: 20 20 10 10 x (m) 3.0 0.5 1.0 1.5 2.5 - 10 1.0 x (m) 3.0 1.5 2.0 2.5 -10 - 20 - 20 Fx (N) Fx (N) 20…
A: Work done = area undee F-x graph
Q: 3. A puppy finds a rawhide bone and begins to pull it with a force, Ft. The free-body diagram is…
A: Given data: Puppy pulls a bone with force Ft Free-body diagram Required: The motion of the bone
Q: A convertible with a soft cloth roof drives at 85 mph. What happens to the roof?
A: When the convertible with a soft cloth roof is moving at 85 mph, the velocity of the air over the…
Q: A 60-kg secret service agent rides in an elevator while standing on a scale. The scale reads 400 N.…
A:
Q: A car travelling at a horizontal path (starting from rest) encounter a resistance four times its…
A:
Q: Q1-A-A projectile is shot upward from the earth with a speed of 30m/s .How high is it when its speed…
A:
Q: 2.The 10kg crate is being pushed 5m along a floor by an 80.0-N force, applied at a 20.0 degree angle…
A:
Q: 2 SA bullet with a mass of 0.3 kg is thrown upwards in the vertical direction with an initial…
A:
Q: Kinetic. Which of the following forces have zero contribution to the change in kinetic energy of the…
A: We want to find zero contribution of forces in change in kinetic energy of object.
Q: A 100 kg crate is being pushed on a horizontal floor at constant velocity. Given that the…
A: Given Data : The mass of the crate is given as m = 100 Kg. The coefficient of kinetic friction is…
Q: A group of young explorers invent a scheme to pull a ore car out of an sloping mine shaft at an…
A:
Q: 3. Suppose that an ideal frictionless inclined plane has an angle of inclanation of 0=5° with…
A: Answer option(e) 0.854
Q: Super Hamster stands with a mass of 1.5 kg and saves the Earth by moving a comet which has a mass of…
A: mass of hamster (m) = 1.5 kg Mass of comet (M) = 8.2×106 kg Initial speed of comet = 0 m/s final…
Q: Camplng eipneut weighing 6000N is polled ro n lale t means of a horiatal 2ope The coefficient of…
A: The mass of the equipment can be written as m=Wgm=6000 N9.8 m/s2m=612.2 kg…
A boy of 50kg is standing in a lift moving down with an acceleration 9.8m/s2. The apparent weight of the boy is?
a) Zero
b) (50×9.8)N
c) 50N
d) 50/9.8N
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
