Calculate the impulse due to the force. a. 10 kg-m/s b. 20 kg-m/s c. 5 N-s d. 15 N-s

The elevator shown in the figure moves downward with a velocity of 610 m/s and acceleration 600 m/s2. Determinea) the velocity and acceleration of the cable Cb) the velocity and acceleration of the counterweight W

Q2: A A body thrown vertically upward with velocity of 30 m/s. Find the distance it will cover in 4 second. B. A body of weight 200 N is lying on a rough horizontal plane having a coefficient of friction as 0.4. Find the magnitude of the force which can move the body while acting at an angle of 30* with the horizontal as shown in figure. 30 f W

While winching a Jeep straight out of the mud, a winch uses 4800Watts of electrical power to pull the 1500-kg Jeep 12meters as it accelerates at 0.15. This takes a the winch 20 seconds to accomplish. Calculate... a.) the force of tension in the cable for the winch to pull the jeep. b.) the work done by the winch to pull the jeep. c.) the power done by the winch to pull the jeep. d.) the efficiency of the winch in this scenario.

In a skating jump, a skater rotates around their vertical central axis. Duringthe jump, the skater's rotation rate is increased by bringing their arms intotheir side. a) When bringing their arms into their side, do es the rotational kinetic energyof the skater go up, go down or stay the same? If it changes, where do es theenergy for this change come from or go to? b) Show that the change in rotational kinetic energy of the skater ∆KR canb e found by (see image) here KRi is the initial rotational kinetic energy of the skater, ωf is the nalangular sp eed and ωi is the initial angular speed. c) During the jump, when the skater draws their outstretched arms inwards,what total torque is acting on the skater if their final rate of rotation is tworotations p er second? d) After landing again, the skater is able to stop rotating and come to acomplete standstill in 0.7s. What is the average ratio of the torque on theskater to the skater's total moment of inertia during the time they come to…

A car is travelling with a speed of 45 m/s. Calculate its speed in km/hr.

The diagram shows a cart at four positions as it moves along its track. At which position is the sum of the potential energy and kinetic energy of the cart the same? B Ⓒ A B at A and C all positions, A through D at Rand D

3- Two cars moving towards cach other, separated by 150 km, If the first car has a speed of 60 m/s and the second has a speed of 40, find the necessary time for them to meet together.

360 N marine in basic training climbs a 15 m vertical rope at uniform speed in 8 minutes. His output power

Write the relatio n between impulse and force.