A truck of mass 3 tonnes was moving with a velocity of 140 km/hr. The brakes were applied to bring the truck to 20 km/hr in 10 seconds . Determine the uniform force exerted by the brakes. Also find the velocity it will reach if the same force is applied in the same direction for 600 m and also find the time taken. The uniform force exerted by the brakes in N is The velocity it will reach if the same force is applied in the same direction for 600 m in m/s is The time taken if the same force is applied in the same direction in seconds is

Question 9 A car of mass 1200 kg is travelling west with a velocity of 72 kmh=1. It takes a left turn at 50° and continues with the same speed. It takes 5.5 s to turn the corner. a. Find the change in momentum of the car as it rounds the corner. b. Find the force the road applies to the cars tyres as it turns the corner. c. Find the force the car's tyres apply to the road as it turns the corner.

The ice-hockey puck with a mass of 0.25 kg has a velocity of 10 m/s before being struck by the hockey stick. After the impact the puck moves in the new direction shown with a velocity of 17 m/s. If the stick is in contact with the puck for 0.06 s, compute the magnitude of the average force F exerted by the stick on the puck during contact, and find the angle ß made by F with the x-direction. 10 m/s 15% Answers: F= i B = i 17 m/s N O

The cord is pulled with a force at point A to lift the anvil. The pulley starts from rest. The cord at point A is pulled down 6 ft. Neglect the mass of the pulleys and cords. Hint: 1. The acceleration you find for point A is constant. F₁ A www C W B Values for the figure are given in the following table. Note the figure may not be to scale. Value 15 lb 21 lb Using equations of motion in rectangular coordinates, Variable F₁ W a. Determine the magnitude of acceleration of point B, ap. b. Determine the magnitude of acceleration of point A, aд. c. Determine the time it takes to pull point A down s = 6 ft. Round your final answers to 3 significant digits/figures. Round coefficients in equation/function to 3 significant digits. aB= 66.857 aд 267.428 t = 0.211 X Submit Question X X S Question Help: Video 1% 1%

An object of mass 5kg is given an initial downward velocity of 50 m/sec and then allowed to fall under the influence of gravity. Assume that the force in newtons due to air resistance is -10v, where v is the velocity of the object in m/sec. Determine the equation of motion of the object. If the object is initially 600 m above the ground, determine when the object will strike the ground. Assume that the acceleration due to gravity is 9.81 m divided by sec ^2 and let x(t) represent the distance the object has fallen in t seconds

Consider the given pulley system. The rope is drawn towards the motor with a speed of 3 m/s. What is the speed of mass A and in what direction is it moving?

A driver enters the exit ramp on a highway at a speed of 40 km/ h and immediately applies the brake so that the magnitude of the car's acceleration at point A is 1.5 m/s2. If the breaking effect remains constant during the motion, calculate the distance that the car stops on the exit ramp.

Problem-3 - 300 ft The automobile is originally at rest at s=0. If its speed is increased by i = (0.05t²) ft/s², 240 ft where t is in seconds, determine the magnitudes of its velocity and acceleration when t = 18 s.

Determine the speed of block in Q1 when it moves 2m up the slope using the Work and Energy method and calculate the power of the force P.  (If you can apply the principle of work and energy or conservation of enegry.)  Plus can you not use the required method for this question. Question 1: A 5kg block is pushed up along the slope as shown. The coefficient of kinetic friction is uk =0.2. Determine the speed of the block when it moves 2 m up the slope using Newton's Second Law. I also gave the answer for Q1 if it helps: V = 2.21m/s

Particles of mass 4kg and 2kg are connected by a light string passing over a smooth fixed pulley. The particles hang freely and are released from rest. Find the acceleration of the two particles and the tension in the string. Let the acceleration be a and the tension in the string be T. kg