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A car is traveling towards the east at a speed of 10.0 ms1. It then turns towards the
north and continues to travel at the same speed. If the turn is made in a time of 5.0 s and
the mass of the car is 2000 kg, calculate (i) the impulse delivered to the car because of
the turn and (ii) the average force exerted on the car during the turn.
Find the frequency of the sound wave in the tube of the length L = 1m, if it’s both ends are (a) open; (b) closed, (c) one end is opened and another end is closed. The speed of sound v =340 m/s.
The section of a tube has height of 6m and it has a fluid with a density of 600 kg/m3, a
velocity of 77.1 m/s and a pressure of 900 Pa. Find the velocity at another section where
the height is 12 m, and the pressure is 400 Pa
4. A test question gives the mass density of sea water and asks what volume is occupied by 1.0 × 103 kg of sea water. Someone answers 0.9843 m. Without knowing the mass density value given, explain what is wrong with this answer
A constant horizontal force of 5.0 N is applied to a 1.2 kg cart. The cart is initially at rest. How fast will it be moving after a time of 3.0 seconds
A particle P of mass 5kg is suspended from a fixed point O by a light inextensible string of length 1m. The particle is projected from its lowest positon at the point A, with a horizontal speed of 4 ms-1. When angle AOP = 600. Find: a)The speed of P b)The tension in the string.
The velocity of a physical system is given by v=[{p+1/n}/x]½.
Where p is the pressure, find the dimensions of n and x.
Find the linear velocities and accelerations of centers of sphere, disc and hoop that roll down an inclined plane without slipping. The incline of height h =1m makes an angle of 300 to the horizontal. The initial velocity of all objects v0 =0, compare calculated velocities and accelerations with the velocity and acceleration of the box, which slides from this incline without friction.
A model car is moving around a circular track of radius 3.0 m at a speed of 1.5 m s−1 as shown in the figure. It takes the car 12.6 s to complete one full lap.
What is the magnitude of the average velocity of the car (a) between point A and point B? (in m s−1 to 2 s.f)
NOTE: The motion of the car is NOT an example of constant acceleration.
A model car is moving around a circular track of radius 3.0 m at a speed of 1.5 m s−1 as shown in the figure. It takes the car 12.6 s to complete one full lap.
What is the magnitude of the average acceleration of the car (a) between point A and point B? (in m s−2 to 2 s.f)
