Mechanics | Relativity Answers

A weightless rod CD, 1.0m long is acted upon by horizontal forces of 2N, 4N, 8N is shown in the figure. What force will be necessary to produce equilibrium? 2N 2N. 8N
!............................!................20......... ..!
100. 60. !
4N

A weightless rod CD, 1.0m long is acted upon by horizontal forces of 2N, 4N, 8N is shown in the figure. What force will be necessary to produce equilibrium?

2N..............................2N.....................8N
100 60. 4N. 0

A small ball of mass 'm' is released at a height 'R' above the earth surface as shown in the given figure . The maximum depth of the ball to which it goes is R/2 inside the earth through a narrow groove before coming to rest momentarily. The groove contains an ideal spring of spring constant K and natural length R. The value of K , if R is the radius of earth and M is mass of the earth:
A

A body of mass 50g is suspended from one end of a spring whose force constant 0.8N\M the body is set into S.H.M with amplitude of 0.4m calculate
1 The period of oscillation
2 The frequency of the motion
3 Angular speed
4 maximum velocity
5 maximum acceleration

A standing wave between the oscillator and the pulley is observed what is the mode number (the number of antinide; the higher harmonics) if the standing wave?

Q.1a box experienced a force of 200 N east for 8.7 s. calculate the impulse caused by the force
Q.2a bullet of mass 0.004 kg moving north with an initial velocity of 700 ms-1is subjected to a force of 7N north for 3.5s calculate the final velocity of the bullet

When rolled down a mountainside at 8.0 m/s, the vertical component of its velocity vector was 2.0 m/s. What was the angle of the mountain surface above the horizontal?

Find the angle between the two vectors
A= 2i +3j +k
B = I - 6j +k

if a 55 n force is required to move an object that weighs 93 n across a level surface at a constant speed, what is the coefficient of kinetic friction

How large a mass will 32 N accelerate at the same rate achieved by 13 N acting one 8.3 kg?