Let's say an astronaut is walking on the moon and wants to test out some basic kinematics. Because there's no atmosphere, there's no air resistance, so the only thing that can cause an object to move faster on the moon is the moon's gravity. Let's say you have a hammer and a feather, each weighing 10.0 kg and 1.00 kg respectively. When you drop them from a height of 1.65 meters, they should both hit the ground at the same time. The gravity on the moon is around 1/6 of what it is on Earth, so you need to figure out how long it'll take for the hammer to reach the ground.

Q: A flea jumps by exerting a force of 1.32 x 10 N straight down on the ground. A breeze blowing on the…

A: force exerted by flea = 1.32 x 10-5 N  down wardbut according Newtons third lawforce acting on flea…

Q: The small mass m = 2.5 kg and big mass M =7.1 kg are initially at rest with the small mass at the…

A: SOlution: Given that m = 2.5 kg M = 7.1 kg h = 3.8 m

Q: A physics student, in a stationary elevator, places a 250.0 g mass on an electronic balance. The…

A: Given  mass (m) =250.0 g balance reading (mb)=262.0 g Required acceleration of elevator (a)=?

Q: 5. If you reduce the applied force on an object by 4, what do you think will happen to the…

A: Write the expression for Newton’s law.

Q: A person weighing 601.3 N stands on spring scales in an elevator that is moving downward with a…

A: Scenario - While going downward in a lift with constant velocity, a person experiences jerk due to…

Q: A 50.0 kg man standing on a spring scale takes a descending elevator ride (DOWNWARD). Starting from…

A:

Q: Your mass is 86.8 kg, and the sled s mass is 17.2 kg. The sled is moving by itself on the ice at…

A:

Q: You are a good tree climber and were helping your neighbor kid retrieve his pickle ball that was…

A: Given that,  The ball is about 5m above the ground, h = 5 m Downward initial velocity, u = 2 m/s…

Q: You place a crate of mass 39.4 kg on a frictionless 3.67- meter-long incline. You release the crate…

A: Given,

Q: A student measures the weight of a puck and finds 365g. She wants to express her result using…

A: Given : W=365g   The scientific notation of a quantity is always of the form : m×10n where…

Q: You place tomatoes in the pan of a hanging spring scale and find that they weigh 2.9 lb. You measure…

A: We know If a spring of spring constant k, is subjected to a force F which stretches or compresses…

Q: A 1 kg toy car is accelerated from rest by a net force shown in the graph. The approximate speed in…

A: We can see that F is a linear function of x.Slope of the linear function…

Q: A spring is fixed to a board so that its hanging from it vertically. A 10 kg mass is attached to the…

A: Let spring constant be "K".   On earth, mge=Kxe         .....(1)   on moon, mgm=Kxm        ......(2)…

Q: A 2.0 kg block is sliding on a horizontal surface slides to a halt due to friction of magnitude 5.1…

A:

Q: The figure shows a 100-kg block being released from rest from a height of 1.0 m. It then takes 0.64…

A: Given: The height of the 100 kg object from the ground is  m. The initial velocity of the system is…

Q: A 1 kg ball and a 2 kg ball, both the same dimensions, are dropped at the same time from a height of…

A: Acceleration due to gravity is independent from the mass of object so for Both object if we apply…

Q: A student with a mass of 68 kg gets on a ferris wheel that rotates at a constant speed. When the…

A: Since, student is in circular motion so, he need a centripetal force which is always towards the…

Q: exerts a force of 1.18 x 10-6 N on the flea. Find the direction and magnitude (in m/s2) of the…

A:

Q: A woman in a lift is trying to weign m/s, and finally decelerates at 1.1 m/s. During the first stage…

A: Given downward accleration ,a=1.7 m/s2costanr speed ,v=3m/sFinaly decelerates at 1.1 m/s2 scale…

Q: A 1,652-kg car starts from rest at the top of a driveway 7.03 m long that is sloped at an angle of…

A:

Q: You build a potato cannon. It has a barrel 1.5 meters long, and want to find out some interesting…

A:

Q: Two weights, each weighing m, are hung over a pulley. If an additional weight of 100 g is attached…

A: Here given two weights each are weighing m. They are hanged from a pully. There is an additional…

Q: 2. Refer to figure 1 of an object's velocity vs. time plot. Calculate your best estimation of the…

A: GivenHere the velocity profile of the object is given in question.Provided the mass of the object is…

Q: A small glider is coasting horizontally when suddenly a very heavy piece of cargo falls out of the…

A: The glider, along with the cargo, are both moving initially horizontally. So their initial vertical…

Q: A physics student, in a stationary elevator, places a 240.0 g mass on an electronic balance. The…

A: Given: The actual mass of the object is 240 g. The apparent mass of the object is 292 g.

Q: A spring is fixed to a board so that its hanging from it vertically. A 10 kg mass is attached to the…

A: Given: Mass attached to the spring is m=10kg. The spring is stretched by ∆x=0.2m. Acceleration due…

Q: A bungee jumper is jumping off a bridge 25 m high that goes over a river. The quadratic equation h =…

A:

Q: The acceleration of a particle moving along the 7. x-axis is given by the function a, = -7 ť + 4 t*…

A:

Q: A model rocket is launched up with a thrust of 44.2 N. At one point in its upward flight, the air…

A:

Q: A lump of clay of mass 0.21 kg is dropped from a height of 5.5 m. The clay comes to a full stop…

A: mass of clay is m = 0.21 Kg height from which clay was dropped is h = 5.5 m time taken by the clay…

Q: While an elevator of mass 930 kg moves downward, the tension in the supporting cable is a constant…

A:

Q: A golf ball is launched into the air at an angle. Its horizontal speed is 30 m/s and its vertical…

A: Given data:  Ball is launched into the air at an angle Horizontal speed (ux) = 30 m/s Vertical speed…

Q: A flea jumps by exerting a force of 1.17 x 10-5 N straight down on the ground. A breeze blowing on…

A:

Q: You are trying to escape a hoard of zombies and must make an elevator to get down a cliff as fast as…

A: vmax = 10 m/s h = 25 m acceleration (a) = 2 ms2m2 = 100 kg

Q: The force on an object moving through a viscous fluid (like honey) is F = -bv, where v is the speed…

A: Given data:  Force on an object F = -bv Here, v = speed of the object Required: SI unit of b

Q: The small mass m = 3.5 kg and big mass M = 5.8 kg are initially at rest with the small mass at the…

A: The law of conservation of energy states that the total energy of an isolated system shall remain…

Q: You place a crate of mass 47.7 kg on a frictionless 3.61-meter-long i to slide down, eventually…

A: The angle of incline is 33. 62° The answer is option (4) approximate 33.8°

Q: Section 1.6 30. a. With what initial speed must you throw a ball vertically for it to reach a height…

A: Height h=20 ft = 6.09 m

Q: A stack of two crates is being accelerated upwards by two cables. The cables are directly attached…

A:

Q: Pedro, not used to ice skating, got stuck in the middle of a frictionless skating rink. Good thing…

A: Using Newton's law of motion, the expression for find acceleration is a=Fm Insert values in the…

Q: how far does it travel

A:

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.