Q1. a sound is heard 5seconds later than the lightning is seen in the sky on a rainy day. find the distance of location of lightning. given speed of sound=346m/s
Q2.a taxi driver noted the reading on odometer as1052km when he started the journey after 30 minutes drive odometer reading was 1088km find the average speed of the taxi
Q3in a long distance race athletes were expected to take 4rounds of the circular track of diameter 28m calculate
the total distance travelled and displacement at the end of race
Q4.a bus starts from rest and attains a speed of 36km/hr in 10 minutes while moving with uniform acceleration calculate the acceleration of the bus
Q5.a car is travelling with a speed of 36km hr-1 the driver applies break and retards the car uniformly the car is stopped in 5seconds find-(1)retardation of the car (2) distance travelled before it stops
Q6. a car is retarded by applying brakes at the rate of 2ms-2 it is finally stopped in 10 seconds find its initial velocity
Q7. a ship is moving at a speed of 56km/hr one second later it is moving at 58km/hr what is its acceleration
Q8. brakes applied to a car produce a uniform retardation of 90cm/ s2 if the car was travelling with a velocity of 27m/s then what distance will it cover before coming to rest?
Q9. calculate the speed of tip of seconds hand of a watch of length 1.5cm
Q10. a bullet is fired on a wall with a velocity of 100m/s if the bullet stops at the depth of 10 cm inside the wall then find the retardation produced by the wall
Q11. a car accelerates uniformly from 27km/h to 45km/hr in 2 seconds calculate (1) acceleration (2) distance covered by car
Q12. on a 120 km track a train travels the first 30 km at a uniform rate speed of 30km/hr how fast must the train travel the next 90km so as to average 60km/hr for entire trip?
Q13. a car travels 30 km at a uniform speed of 60km/hr and next30 km at a uniform speed of 20km/hr find its average speed
Q14. a train acquires a velocity of 36km/hr in 10 seconds just after the start it takes 20seconds to stop calculate the acceleration in the two cases
Q15. a ball is gently dropped from a hieght of 20m if its velocity increase uniformly at the rate of 10ms-2 with what velocity will it strike the ground ? after what time will it strike rhe ground?