Question

Numericals
1. Calculate the average speed of a car that covers a distance of 150 km in 3 hours and next 70km in 2 hours (ans.44km/h)

2. calculate the time taken by a train moving with an average speed of 50 km/h to cover a distance of 250 km (ans.5h)

3.A man walks a distance of 50 m in 1 minute and another 50m in 1.5 min. is the motion and non-uniform?Also find his average speed in m/s
(ans.0.66m/s)

4. a truck travels with a speed of 40 km/h for 30 minutes and then with a speed of 30 km/h for
1h. calculate Total distance travel and average speed of the truck . (ans.50km,33.33km/h)

5. A car starting from rest,picks up a velocity of 15m/s in 5 s,find the acceleration of the car.
(ans.0.75m/s²)

6. A car is moving 15m/s. when it's velocity increase to 20m/s in 5 s, find the acceleration of car.(ans.1m/s²)

7. the mass of an object is 25 kg.calculate its weight( Use g=10 m/s²)
(ans. 250N)

8. the mass of an object is 47 kg. Express it waits in(a) kgf (b) N.
(ans. (a) 47kgf (b) 47N )
​

Answer 1

Answer:

47 kgs you calculate the equation proved