A cyclist is riding with a speed of 27 km/h. As he approaches a circular turn on the road of radius 80 m, he applies brakes and reduces his speed at the constant rate of 0.50 m/s every second. What is the magnitude and direction of the net acceleration of the cyclist on the circular turn?

A cyclist is riding with a speed of 27 km/h. As he approaches a circular turn on the road of radius 80 m, he applies brakes and reduces his speed at the constant rate of 0.50 m/s every second. What is the Read More …

A fighter plane flying horizontally at an altitude of 1.5 km with speed 720 k m/h passes directly overhead an anti-aircraft gun. At what angle from the vertical should the gun be fired for the shell with muzzle speed  600 m s-1 to hit the plane? At what minimum altitude should the pilot fly the plane to avoid being hit? (Take g =  10 m s-2 )..

A fighter plane flying horizontally at an altitude of 1.5 km with speed 720 k m/h passes directly overhead an anti-aircraft gun. At what angle from the vertical should the gun be fired for the shell with muzzle speed  600 m s-1 Read More …

A bullet fired at an angle of 3 0° with the horizontal hits the ground 3.0 km a way. By adjusting its angle of projection, can one hope to hit a target 5.0 km away? Assume the muzzle speed to the fixed, and neglect air resistance.

A bullet fired at an angle of 3 0° with the horizontal hits the ground 3.0 km a way. By adjusting its angle of projection, can one hope to hit a target 5.0 km away? Assume the muzzle speed to Read More …

Page 1 of 8
1 2 3 4 5 6 7 8