Mechanics | Relativity Answers

What is the mass of an object if it experiences a force of 6.57 N overt a time period of 6.65 while it changes velocity by 11.42m/s

A weight if 20N hangs from a fixed point by a light inextensible string. It is pulled aside by a horizontal force with the string inclined at an angle of 30° to the vertical. What is the tension in the string?

A car of mass 500kg accelerates from rest at 1m/s². What is the total distance covered in 1 minute?

A uniform rod 1m long of mass 50g is supported horizontally on two knife edge place 10cm from its end. What will be the reaction at this support when 100g mass is suppend 10cm from the midpoint of the rod

A uniform metre rule is pivoted at 30 cm Mark.it is 100 long. The rule balances when a weight of 6N is placed in 0cm and a weight of 2N is placed on 70cm Mark. What is the weight of the rule

A high-jumper approaches the bar at 6.71m/s. exactly 83% of his kinetic energy is converted into potential energy due to his tremendous high-jumping form. Will he be able to clear the bar when it is set at 6'3"

Q1.A 50 mm diameter stream of water strikes a 0.5 m by 0.5 m square plate which is at an angle of 30 degrees with the stream’s direction. The velocity of the water in the stream is 20 m/s and the jet strikes the door at its centre of gravity. If the plate is hinged at A, by neglecting the friction and self-weight of the plate, determine the normal force P applied at the upper edge of the plate to keep the plate in equilibrium. You may assume that the velocities of the jet remain unchanged after split.

Q1.Sections 1 and 2 are at the beginning and end of the bend of the 200 mm diameter pipe in which the quantity of flow is 0.28 m3/s. The angle of deflection of the water is 40°. Calculate the force that the liquid exerts on the bend if the pressure in the pipe is 50 kPa. Assume no loss of pressure round the bend

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a truck hits a brick wall with a force of 100000 kg.m/s2. the truck come to a stop in 0.5. calculate the impulse the truck experinced.

a truck hits a brick wall with a force of 100000 kg.m/s2. the truck come to a stop in 0.5. calculate the impulse the truck experinced.