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- calculate the momentum of a 0.15 kg ball that is moving northwards towards home plate at a velocity of 40 m/s.
- a 100 kg car strikes a tree at 30.0 km/h and comes to a stop in 0.15 s. Determine the following:
a. What is the car's initial momentum?
b. What is the average force on the car while the car is being stopped?
- A 50 kg mass is sitting on a frictionless surface. an unknown constant force pushes the mass for 2 second until that mass reaches a velocity of 3 m/s.
a. what is the initial momentum of the mass?
b. what is the final momentum of the mass?
c. what was the force acting on the mass?
d. what was the impulse acting on the mass?
Connor runs for 50s at of 15m/s. How far does he go?
The equation of a transverse sinusoidal wave is given by: y = 2x10^-3 sin (18x - 600t +30⁰) m. Find the:
(a) amplitude of the wave
(b) the wavelength
(c) the frequency
(d) the wave speed, and
(e) the displacement at position 0m and time 0s
(f) the maximum transverse particle speed.
You are camping with two friends, Pal and Mer. Since all three of you like your privacy, you don’t pitch your tents close together. Pal’s tent is 30m from yours, in the direction 30o south of east. Mer’s tent is 50m from yours, in the direction 40o north of east. What is the distance between Pal’s tent and Mer’s tent?
Three horizontal ropes pull on a large stones stack in the ground, producing the vector forces A, B & C. Find the magnitude and direction of a fourth force on the stone that will make the vector sum of the four forces zero.
A = 150N 40o North of East
B = 90N 40o West of North
C = 50N 63o South of West
1m3 of aluminum has a mass of 4x106 gram and 1m3 of iron has a mass of 10x106 gram. Find the radius of a solid aluminum sphere in meter that will balance a solid iron sphere of radius 4cm on an equal arm balance.
The body accelerates uniformly from 33m/s. Find it's velocity after travelling a distance from 24m.
A train with an intial velocity of 20m/s is subjected to a uniform deceleration of 2m/s. Calculate the time required to bring the train to a complete halt.
a geosynchronous satellite is one that stay above the same point on the equator of the earth,so what is the period of such satellite in seconde
Blocks A and B are moving toward each other. A has a mass of 6.7
and a velocity of 6.5m/s, while B has a mass of 9.2kg and a velocity of −5.9m/s. They suffer a completely inelastic collision. During the collision, how much kinetic energy is lost? Only give the numerical value and don't include the unit
