A car 2m long and 3m wide is moving at `10m//s` when a bullet hits it in a direction making an angle of `tan^(-1)(3//4)` with the car as seen from the ground. The bullet enters one edge of the car at the corner and passes out at diagonally opposite corner. Neglecting gravity, the time for the bullet to cross the car is

A car 2 m long and 3 m wide is moving at 13m/sec when a bullet hits it in a direction making an angle theta=tan^(-1) 3//4 with the car as seen from the street. The bullet enters one edge of the comer and passes out at the diagonally opposite comer. Neglectingany interaction between bullet and car find the time for the bullet to cross the car :

A railway compartments is 16 m long, 2.4 m wide and 3.2 m high. It is moving with a velocity v A particle moving horizontally with a speed u perpendicular to the direction of v enters through a hole at an upper corner A and strikes the diagonally opposite corner B .Assume g=10 m//s^(2) .

A railway compartment is 16m long, 2.4 m wide and 3.2 m high. It is moving with a velocity v. A particle moving horizontally with a speed u, perpendicular to the direction of v, enters through a hole at an upper corner A and strikes the diagonally opposite corner B. Assume g = 10 m//s^(2) .

A car is moving on a circular track of diameter 72 m with a speed of 6 m/s . It is acclereration at the rate of sqrt(3) m//s^(2) If the mass of the car is 1000 kg , the net force acting on the car is :

A car is stopped at a red traffic light. When the light turns to green, the car has a constant acceleration and crosses the 9.10 m intersection in 2.47 s. What is the magnitude of the car's acceleration ?

A car moves at a constant speed on a straigh but hilly road. One section has a crest and dip of the 250m radius. (a) As the car passes over the crest the normal force on the car is half the 16kN weight of the car. What will the noraml force on the car its passes through th ebottom of the dip? (b) What is the greatest speed at which the car can move without leaving the road at the top of the hill ? (c) Moving at a speed found in part (b) what will be the normal force on the car as it moves through the bottom of the dip? (Take, g=10m//s^(2))

A wooden boxcar is moving along a straight railroad track at speed v_1 . A bullet (initial speed v_2 ) is fired at it from a high - powered rifle . The bullet passes through both lengthwise walls of the car , its entrance and exit holes being exactly opposite each other is viewed from within the car . from what direction , relative to the track . is the bullet fired? Assume that the bullet is not deflected upon entering the car, but that its speed decreases by 20%. Take v_1 85 km/h and v_2 650 m/s. (Why is the width of the boxcar not relevant in this calculation?)

A car is moving with constant speed of 10m/s on a horizontal circular path of radius 10sqrt(3m) . A bob of mass m suspended through a light string from the roof of the car. What is the angle made by the string with the vertical if the bob is stationary with respect to the car? (g = 10 m/ s^(2) )