Two mechanics worked on a car. The first mechanic worked for 15 hours, and the second mechanic worked for 5 hours. Together they charged a total of $1225 . What was the...

Two mechanics worked on a car. The first mechanic worked for 15 hours, and the second mechanic worked for 5 hours. Together they charged a total of $1225 . What was the...

A car of mass 1000 kg has its speed reduced from 81 km/h to 54 km/h by brakes producing a force of 1250 N. How long does this take? Determine the work done by the brakes on the car. Determine...

e.g: for the period of a pendulum?

When i apply F1=500N for 5sec and 600 for 10 sec, what will be the effective forces?

Find the maximum angle of deflection from verticle to which the string will be deflected by conservation of energy principle.

On stricking the bullet gets embedded into the block of mass M amd tbe system ( bullet+ pendulum) swings up to a maximum height h. Show that u= ((m+M)/m)* sqrt of 2gh

A 2.5 kg ball is suspended over a table that is attached to a 3.5 kg block that is on the table. The friction coefficient of the table is 0.25 What is the initial acceleration of the...

What is the speed of: a) upper part of the caterpillar, b) lower part of the caterpillar, c) caterpillar link which, in the considered moment, moves vertically?

A machine component of mass 14kg is constrained to move only in the direction of the slide as shown. It is subject to the force F= 350N as shown. Neglecting effects of static weight, calculate its...

An ice hockey puck is struck from one end of the rink to the other end of length 27m. The initial speed is 6m/s and the puck rebounds of the boundary fence on the other side at a speed 0.75 times...

Really unsure with this topic so could you please show working out and how its done for me, huge thank you. 1) For the shape below, showing all calculations find the centroid of the composite...

I need a answer urgently

Kindly Solve it

4. Two closed organ pipes of length 0.5 m and 0.525 m are sounded together and produce 6 beats per second. What is the velocity of sound in the medium with which the organ pipes are filled...

An aluminium rod (1) [E=70 GPa; α = 22.5 × 10-6 / o C] and brass rod (2) [E=105 GPa; α = 18.0 × 10-6 / o C] are connected to rigid supports as shown. The cross sectional areas of rods (1) and (2)...

P is a point 10m from the bottom of a slope, A ball is rolled up the slope from P with as initial velocity of 8 m.s-1 , it undergoes a constant acceleration of -4 m.s-2 a- i-...

There is a fixed wedge whose smooth sloping face is inclined at 30 degree to the horizontal. A particle P of mass 2 kg rests on the sloping face of the wedge. A light inextensible string, passes over...

A car whose engine can work at a maximum rate of 20 kW is traveling along a straight horizontal road. The maximum speed of the car is 40 m/s. Find the resistance to motion. The car, which...

A heavy ring of mass 5 kg is threaded on a fixed rough horizontal rod. The coefficient of friction between the ring and the rod is 0.5. A light string is attached to the ring and is pulled downwards...

(A) Two particles P and Q of masses 10 kg and 5 kg respectively are attached to the ends of a light in-extensible string. The string passes a fixed smooth peg. ( It's something like two particles...