An experimental psychologist is designing an experiment to determine how a fast-food diet affects the moods of individuals. Which of the following groups would not be given a diet consisting only of fast-food?

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?

Which situation will produce the greatest change of momentum